caravan service letter - cessna

Caravan SERVICE LETTERCAL-71-10

TITLE

POWER PLANT - TRANSMITTAL OF P&WC S.B. NO. 1638R2, S.B. NO. 1714, S.I.L NO. PT6A-041R6, S.I.LNO. PT6A-107R1, S.I.L NO. PT6A-149R4, S.I.L NO. PT6A-201, S.I.L NO. PT6A-208

EFFECTIVITY

208 and 208B Airplanes

REASON

To transmit the seven Pratt & Whitney Canada (P&WC) service documents that follow:

• Service Bulletin P&WC S.B. No. 1638R2, Turboprop Engine Seal, Plain - Replacement Of• Service Bulletin P&WC S.B. No. 1714, Turboprop Engine Reversed Position Adjuster Bolt Installation• Service Information Letter S.I.L NO. PT6A-041R6, TBO Escalation Process Through Sampling• Service Information Letter S.I.L NO. PT6A-107R1, Fees Applicable to TBO Extension Recommendations• Service Information Letter S.I.L NO. PT6A-149R4, Maintenance of Engine Fuel Pump Drive and Coupling

Shaft Assembly• Service Information Letter S.I.L NO. PT6A-201, Migration to Technical Publications Online• Service Information Letter S.I.L NO. PT6A-208, 2013 PT6A Customer Days and PT6A Events.

DESCRIPTION

Cessna Aircraft Company wishes to transmit these seven P&WC service documents as informationfor model 208/208B airplane owners.

COMPLIANCE

INFORMATIONAL. This service letter is for informational purposes only.

LABOR HOURS

Not applicable

MATERIAL AVAILABILITY

Not applicable

REFERENCES

P&WC Service Bulletin S.B. No. 1638R2, Turboprop Engine Seal, Plain - Replacement Of

P&WC Service Bulletin S.B. No. 1714, Turboprop Engine Reversed Position Adjuster Bolt Installation

P&WC Service Information Letter S.I.L NO. PT6A-041R6, TBO Escalation Process Through Sampling

P&WC Service Information Letter S.I.L NO. PT6A-107R1, Fees Applicable to TBO ExtensionRecommendations

P&WC Service Information Letter S.I.L NO. PT6A-149R4, Maintenance of Engine Fuel Pump Driveand Coupling Shaft Assembly

P&WC Service Information Letter S.I.L NO. PT6A-201, Migration to Technical Publications Online

P&WC Service Information Letter S.I.L NO. PT6A-208, 2013 PT6A Customer Days and PT6A Events

CAL-71-10July 17, 2013 of 1

Cessna Aircraft Company, Cessna Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800, Fax 1-316-517-7271

This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United Statesin accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991

COPYRIGHT © 2013

BULLETIN INDEX LOCATOR72-60-00

TURBOPROP ENGINESEAL, PLAIN - REPLACEMENT OF

MODEL APPLICATION

PT6A-6, PT6A-6A, PT6A-6B, PT6A-20, PT6A-20A, PT6A-20B, PT6A-21, PT6A-25, PT6A-25A,PT6A-25C, PT6A-27, PT6A-28, PT6A-34, PT6A-34AG, PT6A-34B, PT6A-35, PT6A-36, PT6A-114,

PT6A-114A, PT6A-135, PT6A-135A

Compliance: CATEGORY 6, 8

Summary: There are reports of oil leakage at the starter pad location. Replace the seal and theassociated carrier with a new redesigned seal that has an integral seal carrier.

PRATT & WHITNEY CANADA

SERVICE BULLETINP&WC S.B. No. 1638R2

Oct 17/2005 PT6A-72-1638Revision No. 2: Apr 24/2013 Cover Sheet

24-Hour Global Service USA & CANADA........................ 1-800-268-8000 Other .......................................... 1-450-647-8000

CFIRST CENTRE International .................... (IAC*)+8000-268-8000 Fax ............................................. 1-450-647-2888

Toll free where available (SIL GEN-027) * International Access Code Web Site .................................. www.pwc.ca

WARNING - PROPRIETARY RIGHTS & EXPORT CONTROLS NOTICE

This bulletin contains proprietary information of Pratt & Whitney Canada Corp. (″P&WC″), whichP&WC provides in confidence and solely for the purposes of supporting engine certification andproviding applicable information regarding the proper use, maintenance, inspection, repair, servicingand parts application of P&WC products and services, as directed therein. Neither this bulletin norany information in it may be disclosed to others, or used for any other purpose, including, withoutlimitation, to design, create, develop, reproduce, manufacture or derive any design, part, product,material, process, modification, configuration change or repair, or obtain FAA or other governmentapproval to do so. Possession and use of this bulletin is also subject to the restrictions set out inP&WC’s Technical Data Agreement (a copy of which may be obtained by contacting P&WC TechnicalPublications). The contents of this bulletin may be subject to export control laws. Unauthorized exportor re-export of the bulletin, or parts thereof, is prohibited. By accepting and possessing this bulletin,you agree to be bound by the foregoing terms.

If a Government agency or department intends to disclose any information, written notice should begiven to:VP - Legal Services, Pratt & Whitney Canada Corp., 1000 Marie-Victorin (01BE5), Longueuil,Quebec J4G 1A1.

Export Control Classification

*Data is subject to the jurisdiction of the Export and ImportControls Bureau of the Department of Foreign Affairs andInternational Trade of Canada, Department of Commerceof the United States and/or Department of State of theUnited States.

** Data is not subject to the jurisdiction of the Departmentof Commerce of the United States or Department of Stateof the United States but would become subject if exposedto any US involvement.

Regulation ClassificationNumber

Canadian ECL(s)*

ECCN(s)*

P-ECCN(s)** 9E991

USML (ITAR)*

P-USML**

REVISION TRANSMITTAL SHEETTURBOPROP ENGINE MODEL PT6A

SUBJECT: Pratt & Whitney Canada Service Bulletin No. PT6A-72-1638, Rev. No. 2, dated Apr24/2013 (P&WC S.B. No. 1638R2) SEAL, PLAIN - REPLACEMENT OF

Replace your existing copy of this service bulletin with the attached revised bulletin. Destroy thesuperseded copy.

Please retain this Revision Transmittal Sheet with the revised bulletin.

SUMMARY: This revision is issued to:

v modify the Instructions Disposition code to read ‘‘C’’ instead of ‘‘B’’ for P/N 3022376to Para. 2.C., Material Information.

v include the BS numbers for engines PT6A-21, PT6A-34, PT6A-34AG to Para. 1.A.,Effectivity.

v update the manual references to Para. 1.K., References and Para. 1.L., PublicationsAffected.

v update the manual references to Para. 3., Accomplishment Instructions.

EFFECT OF REVISION ON PRIOR ACCOMPLISHMENT:

None.

NOTE: A black bar in the left margin indicates a change in that line of text or figure.

REVISION HISTORY:

Original Issue: Oct 17/2005Revision No. 1: Nov 15/2005Revision No. 2: Apr 24/2013

Pratt & Whitney Canada Corp.1000, Marie-VictorinLongueuil, Québec, Canada J4G 1A1Tél. 450-677-9411

24 April 2013

P&WC S.B. No. 1638R2

1. Planning Information

A. Effectivity

PT6A-6 Engines.PT6A-6A Engines.PT6A-6B Engines and all engines converted to Engine Model PT6A-6B (Ref. P&WC

engine conversion SB1065).PT6A-20 Engines and all engines converted to Engine Model PT6A-20 (Ref. P&WC

engine conversion SB1267).PT6A-20A Engines and all engines converted to Engine Model PT6A-20A (Ref. P&WC

engine conversion SB1268).PT6A-20B Engines and all engines converted to Engine Model PT6A-20B (Ref. P&WC

engine conversion SB1206).PT6A-21 Engines (BS671, BS692, BS788, BS789, BS1141).PT6A-25 Engines which include Serial No. PCE-48001 thru PCE-48725 and PCE-58001

thru PCE-58412.PT6A-25A Engines which are before and include Serial No. PCE-48757.PT6A-25C Engines.PT6A-27 Engines.PT6A-28 Engines which include Serial No. PCE-52001 thru PCE-52696 and all engines

converted to Engine Model PT6A-28 (Ref. P&WC engine conversion SB1120).PT6A-34 Engines (BS583, BS952, BS983, BS1009, BS1114, BS1160).PT6A-34AG Engines (BS519, BS916, BS970, BS975, BS1013, BS1159)/ PT6A-34AG

Engines Post-SB1386, Engines which are before and include Serial No.PCE-PH0340, Engines PCE-56302 thru PCE-57528, and all engines converted toEngine Model PT6A-34AG (Ref. P&WC engine conversion SB1252).

PT6A-34B Engines which include Serial No. PCE-54001 thru PCE-54137.PT6A-35 Engines excluding Serial No. PCE-RR0077.PT6A-36 Engines which include Serial No. PCE-38001 thru PCE-38215 and all engines

converted to Engine Model PT6A-36 (Ref. P&WC engine conversion SB1405).PT6A-114 Engines.PT6A-114A Engines.PT6A-135 Engines.PT6A-135A Engines which are before and include Serial No. PCE-PZ20215 and Serial

No. PCE-35001 thru PCE-35102.

B. Concurrent Requirements

None.

C. Reason

(1) Problem

There are reports of oil leakage at the starter pad location.

(2) Cause

Starter generator lip seal wear.

P&WC No. D0332H, DO332P, DCR16665, DCR21028



P&WC Proprietary Information. Subject to the restrictions on the back of the locator

The export control classification with respect to this document is contained on the back of the locator.Oct 17/2005 PT6A-72-1638Revision No. 2: Apr 24/2013 Page 1 of 8© 2005 Pratt & Whitney Canada Corp.

PRINTED IN CANADA


1. Planning Information (Cont’d)

(3) Solution

To improve durability, replace the garter spring type seal and its associated carrierwith a new redesigned Teflon seal which has:

v an integral seal carrier,

v a primary lip with a hydrodynamic feature to enable oil to be pumped back intothe accessory gearbox,

v a new dust lip.

D. Description

Replace the garter spring type seal and its associated carrier with a new redesignedTeflon seal.

E. Compliance

For Single Engine Applications:

CATEGORY 6 - P&WC recommends to do this service bulletin when the subassembly(i.e. module, accessories, components, or build groups) is disassembledand access is available to the necessary part. Do all sparesubassemblies.

For All Other Engine Applications:

CATEGORY 8 - This service bulletin is optional and can be done at the discretion ofthe operator.

F. Approval

D.O.T./D.A.A. approved.

G. Manpower

Once you have access to the part, an estimate of 1.0 man-hours is required to includethis service bulletin at maintenance.

No more man-hours are necessary to include this service bulletin at overhaul.

H. Weight and Balance

None.




The export control classification with respect to this document is contained on the back of the locator.Oct 17/2005 PT6A-72-1638Revision No. 2: Apr 24/2013 Page 2 of 8



I. Electrical Load Data

Not changed.

J. Software Accomplishment Summary

Not applicable.

K. References

Illustrated Parts Catalog P/N 3015444 (PT6A-6, PT6A-6A, PT6A-6B, PT6A-20,PT6A-20A, PT6A-20B)

Illustrated Parts Catalog P/N 3013244 (PT6A-21, PT6A-27, PT6A-28)Illustrated Parts Catalog P/N 3027544 (PT6A-25, PT6A-25A)Illustrated Parts Catalog P/N 3032144 (PT6A-25C)Illustrated Parts Catalog P/N 3021244 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Illustrated Parts Catalog P/N 3043514 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Illustrated Parts Catalog P/N 3058364 (PT6A-35)Maintenance Manual P/N 3015442 (PT6A-6, PT6A-6A, PT6A-6B, PT6A-20, PT6A-20A,

PT6A-20B)Maintenance Manual P/N 3013242 (PT6A-21, PT6A-27, PT6A-28)Maintenance Manual P/N 3027542 (PT6A-25, PT6A-25A)Maintenance Manual P/N 3032142 (PT6A-25C)Maintenance Manual P/N 3021242 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Maintenance Manual P/N 3043512 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Maintenance Manual P/N 3058362 (PT6A-35)Overhaul Manual P/N 3008103 (PT6A-6, PT6A-6A, PT6A-6B)Overhaul Manual P/N 3011403 (PT6A-20, PT6A-20A, PT6A-20B)Overhaul Manual P/N 3013243 (PT6A-21, PT6A-27, PT6A-28)Overhaul Manual P/N 3027543 (PT6A-25, PT6A-25A)Overhaul Manual P/N 3032143 (PT6A-25C)Overhaul Manual P/N 3021243 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-35, PT6A-36,

PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)P&WC Consumable Materials List P/N 3043340

L. Publications Affected


Illustrated Parts Catalog P/N 3013244 (PT6A-21, PT6A-27, PT6A-28)Illustrated Parts Catalog P/N 3027544 (PT6A-25, PT6A-25A)Illustrated Parts Catalog P/N 3032144 (PT6A-25C)Illustrated Parts Catalog P/N 3021244 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Illustrated Parts Catalog P/N 3043514 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Illustrated Parts Catalog P/N 3058364 (PT6A-35)







Maintenance Manual P/N 3015442 (PT6A-6, PT6A-6A, PT6A-6B, PT6A-20, PT6A-20A,PT6A-20B)

Maintenance Manual P/N 3013242 (PT6A-21, PT6A-27, PT6A-28)Maintenance Manual P/N 3027542 (PT6A-25, PT6A-25A)Maintenance Manual P/N 3032142 (PT6A-25C)Maintenance Manual P/N 3021242 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Maintenance Manual P/N 3043512 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Maintenance Manual P/N 3058362 (PT6A-35)Overhaul Manual P/N 3008103 (PT6A-6, PT6A-6A, PT6A-6B)Overhaul Manual P/N 3011403 (PT6A-20, PT6A-20A, PT6A-20B)Overhaul Manual P/N 3013243 (PT6A-21, PT6A-27, PT6A-28)Overhaul Manual P/N 3027543 (PT6A-25, PT6A-25A)Overhaul Manual P/N 3032143 (PT6A-25C)Overhaul Manual P/N 3021243 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-35, PT6A-36,

PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)

M. Interchangeability and Intermixability of Parts

Interchangeability - Refer to Para. 2.C.

Intermixability - Not changed.

2. Material Information

A. Industry Support Information

Not applicable.

B. Material - Cost and Availability

You can get the procurable parts listed in Para. 2.C. from any Pratt & Whitney CanadaParts Distribution Center.

The estimated total cost of new parts needed to replace old parts is $Quote (US, 2005).

The new parts are available.






C. Material Necessary for Each Engine

The quantity of materials listed in this section is on a per Engine basis.

New P/N Keyword Old P/N Qty

Est. UnitList Price

($US,2005)

InstructionsDisposition

For Engines PT6A-114, PT6A-114A, PT6A-135A, PT6A-21 (BS671, BS692, BS788, BS789,BS1141), PT6A-34 (BS583, BS952, BS983, BS1009, BS1114, BS1160), PT6A-34AG (BS519,BS916, BS970, BS975, BS1013, BS1159), PT6A-35

Seal, Plain 3022376 1 (A)(C)

Carrier, Oil Seal 3015863 1 (A)(B)

3059046-01 Lip Seal, Teflon 1 Quote (A)

For Engines (Post-SB1386) PT6A-6, PT6A-6A, PT6A-6B, PT6A-20, PT6A-20A, PT6A-20B,PT6A-21, PT6A-25, PT6A-25A, PT6A-25C, PT6A-27, PT6A-28, PT6A-34, PT6A-34AG,PT6A-34B, PT6A-36, PT6A-135

Seal, Plain 3022376 1 (A)(C)

Carrier, Oil Seal 3103951-01 1 (A)(B)

3059046-01 Lip Seal, Teflon 1 Quote (A)

3070216-01 Spacer, Flat 1 Quote (A)

Standard Replacement Part

AS3209-030 Packing AS3209-030 1 4.79

(A) RESTRICTED INTERCHANGEABILITY - (ATA 200 Explanation Code 07):All the old parts must be replaced by all the new parts as an assembly.

(B) Discard the part if it is unserviceable. Return a serviceable part to stock.

(C) Discard. Do not use again in any application.

D. Reidentified Parts

None.

E. Tooling - Price and Availability

Tool No. NomenclatureEst. Price

($US, 2005) Delivery

PWC70869 Drift Quote Available






Tool No. NomenclatureEst. Price

($US, 2005) Delivery

PWC70838 Puller Quote Available

3. Accomplishment Instructions

A. Remove the parts listed under Old P/N in Para. 2.C., Material Information, per theapplicable maintenance or overhaul manual instructions:

v Ref. OHM Chapter 72-60-00 ACCESSORY GEARBOX - DISASSEMBLY.

v Ref. MM Chapter 72-60-00 ACCESSORY GEARBOX ASSEMBLY - MAINTENANCEPRACTICES.

B. Install the parts listed under New P/N in Para. 2.C., Material Information, per theapplicable maintenance or overhaul manual instructions with the differences that follow(Ref. Fig. 1 and Table 1):

v Ref. OHM Chapter 72-60-00 ACCESSORY GEARBOX - SUB-ASSEMBLY.

v Ref. MM Chapter 72-60-00 ACCESSORY GEARBOX ASSEMBLY - MAINTENANCEPRACTICES.

NOTE: 1. The lip seal P/N 3059046-01 is supplied with a mandrel for installation. Donot remove the mandrel from the lip seal prior to installation.

NOTE: 2. If removal of the lip seal P/N 3059046-01 is required, use Puller (PWC70838).

(1) Apply engine oil (PWC03-001) to packing P/N AS3209-030.

(2) Install the packing on the lip seal P/N 3059046-01.

(3) Align the mandrel, of the lip seal, against the shaft in the boss of the gearboxhousing.

(4) Push the lip seal into the shaft with drift (PWC70869).

(5) Discard the mandrel.

(6) For Engines Post-SB1386, install the spacer P/N 3070216-01 on the lip seal.

(7) Install the retaining ring P/N AS3215-128 in the boss to secure the lip seal.

C. Write accomplishment of P&WC S.B. No. 1638 in the applicable engine module logbook.






PRE−SB POST−SB

783 784 784

FITS AND CLEARANCES

PACKING

LIP SEALP/N 3059046−01

RETAINING RING

LIP SEALP/N 3059046−01

PACKING

MANDREL

SPACERP/N 3070216−01(POST−SB1386)

C102156

Lip Seal - Installation ofFigure 1






4. Appendix

TABLE 1, Fits and Clearances

Dim. for Ref.inches (mm)

Limitsinches (mm)

REF.NO. IFR Name Min. Max. Min. Max. Replace

Post-SB784 Lip Seal, 0.938 Shaft

Dia.1.7620

(44.755)1.7630

(44.780) 0.0000 0.0030(0.0000) (0.076)Housing-Accessory

Gearbox1.7630

(44.780)1.7650

(44.831)






BULLETIN INDEX LOCATOR76-10-00

TURBOPROP ENGINEREVERSED POSITION ADJUSTER BOLT INSTALLATION

MODEL APPLICATION

PT6A-20A, PT6A-20B, PT6A-21, PT6A-25A, PT6A-25C, PT6A-27, PT6A-28, PT6A-34, PT6A-34AG,PT6A-34B, PT6A-35, PT6A-36, PT6A-114, PT6A-114A, PT6A-135, PT6A-135A, PT6A-65R

Compliance: CATEGORY 8

Summary: There can be Fuel Control Unit (FCU) reverse propeller rigging limitations do to theadjuster bolt not extending enough to compensate the dead band length. To increasethe dead band length compensation during the FCU reverse propeller rigging allowreversed position installation of the adjuster bolt.


SERVICE BULLETINP&WC S.B. No. 1714

Jun 28/2013 PT6A-72-1714Cover Sheet

24-Hour Global Service USA & CANADA........................ 1-800-268-8000 Other .......................................... 1-450-647-8000

CFIRST CENTRE International .................... (IAC*)+8000-268-8000 Fax ............................................. 1-450-647-2888

Toll free where available (SIL GEN-027) * International Access Code Web Site .................................. www.pwc.ca

WARNING - PROPRIETARY RIGHTS & EXPORT CONTROLS NOTICE

This bulletin contains proprietary information of Pratt & Whitney Canada Corp. (″P&WC″), whichP&WC provides in confidence and solely for the purposes of supporting engine certification andproviding applicable information regarding the proper use, maintenance, inspection, repair, servicingand parts application of P&WC products and services, as directed therein. Neither this bulletin norany information in it may be disclosed to others, or used for any other purpose, including, withoutlimitation, to design, create, develop, reproduce, manufacture or derive any design, part, product,material, process, modification, configuration change or repair, or obtain FAA or other governmentapproval to do so. Possession and use of this bulletin is also subject to the restrictions set out inP&WC’s Technical Data Agreement (a copy of which may be obtained by contacting P&WC TechnicalPublications). The contents of this bulletin may be subject to export control laws. Unauthorized exportor re-export of the bulletin, or parts thereof, is prohibited. By accepting and possessing this bulletin,you agree to be bound by the foregoing terms.

If a Government agency or department intends to disclose any information, written notice should begiven to:VP - Legal Services, Pratt & Whitney Canada Corp., 1000 Marie-Victorin (01BE5), Longueuil,Quebec J4G 1A1.

Export Control Classification

*Data is subject to the jurisdiction of the Export and ImportControls Bureau of the Department of Foreign Affairs andInternational Trade of Canada, Department of Commerceof the United States and/or Department of State of theUnited States.

** Data is not subject to the jurisdiction of the Departmentof Commerce of the United States or Department of Stateof the United States but would become subject if exposedto any US involvement.

Regulation ClassificationNumber

Canadian ECL(s)*

ECCN(s)*

P-ECCN(s)** 9E991

USML (ITAR)*

P-USML**

1. Planning Information

A. Effectivity

PT6A-20A Engines and all engines converted to Engine Model PT6A-20A (Ref. P&WCengine conversion SB1268).

PT6A-20B Engines and all engines converted to Engine Model PT6A-20B (Ref. P&WCengine conversion SB1206).

PT6A-21 Engines.PT6A-25C Engines.PT6A-27 Engines and all engines converted to Engine Model PT6A-27 (Ref. P&WC



engine conversion SB1499).PT6A-34AG Engines and all engines converted to Engine Model PT6A-34AG (Ref.

P&WC engine conversion SB1252).PT6A-34B Engines which include Serial No. PCE-54001 thru PCE-54137.PT6A-35 Engines.PT6A-36 Engines which include Serial No. PCE-38001 thru PCE-38215 and all engines

converted to Engine Model PT6A-36 (Ref. P&WC engine conversion SB1405).PT6A-114 Engines.PT6A-114A Engines and all engines converted to Engine Model PT6A-114A (Ref. P&WC

engine conversion SB1625).PT6A-135 Engines.PT6A-135A Engines.

B. Concurrent Requirements

None.

C. Reason

(1) Problem

There can be fuel control unit (FCU) reverse propeller rigging limitations.

(2) Cause

The adjuster bolt does not extend enough to compensate the dead band lengthduring the FCU reverse propeller rigging.

(3) Solution

To increase the dead band compensation during the FCU reverse propeller riggingallow reversed position installation of the adjuster bolt (3012417).

P&WC No. E5424A




The export control classification with respect to this document is contained on the back of the locator.Jun 28/2013 PT6A-72-1714Page 1 of 5© 2013 Pratt & Whitney Canada Corp.

PRINTED IN CANADA



D. Description

Reverse the installation position of the adjuster bolt (3012417).

E. Compliance

CATEGORY 8 - This service bulletin is optional and can be done at the discretion ofthe operator.

F. Approval

D.O.T./D.A.A. approved.

G. Manpower

Once you have access to the part, an estimate of 1.5 man-hours is required to includethis service bulletin at maintenance.

No more man-hours are necessary to include this service bulletin at overhaul.

H. Weight and Balance

None.

I. Electrical Load Data

Not changed.

J. Software Accomplishment Summary

Not applicable.

K. References


Illustrated Parts Catalog P/N 3013244 (PT6A-21, PT6A-27, PT6A-28)Illustrated Parts Catalog P/N 3032144 (PT6A-25C)Illustrated Parts Catalog P/N 3058364 (PT6A-35)Illustrated Parts Catalog P/N 3021244 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Illustrated Parts Catalog P/N 3043514 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Maintenance Manual P/N 3015442 (PT6A-6, PT6A-6A, PT6A-6B, PT6A-20,

PT6A-20A, PT6A-20B)Maintenance Manual P/N 3013242 (PT6A-21, PT6A-27, PT6A-28)Maintenance Manual P/N 3032142 (PT6A-25C)




The export control classification with respect to this document is contained on the back of the locator.Jun 28/2013 PT6A-72-1714Page 2 of 5



Maintenance Manual P/N 3021242 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Maintenance Manual P/N 3058362 (PT6A-35)Maintenance Manual P/N 3043512 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Overhaul Manual P/N 3011403 (PT6A-20, PT6A-20A, PT6A-20B)Overhaul Manual P/N 3013243 (PT6A-21, PT6A-27, PT6A-28)Overhaul Manual P/N 3032143 (PT6A-25C)Overhaul Manual P/N 3021243 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-35, PT6A-36,

PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)

L. Publications Affected

Maintenance Manual P/N 3015442 (PT6A-6, PT6A-6A, PT6A-6B, PT6A-20, PT6A-20A,PT6A-20B)

Maintenance Manual P/N 3013242 (PT6A-21, PT6A-27, PT6A-28)Maintenance Manual P/N 3032142 (PT6A-25C)Maintenance Manual P/N 3021242 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36)Maintenance Manual P/N 3058362 (PT6A-35)Maintenance Manual P/N 3043512 (PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)Overhaul Manual P/N 3011403 (PT6A-20, PT6A-20A, PT6A-20B)Overhaul Manual P/N 3013243 (PT6A-21, PT6A-27, PT6A-28)Overhaul Manual P/N 3032143 (PT6A-25C)Overhaul Manual P/N 3021243 (PT6A-34, PT6A-34AG, PT6A-34B, PT6A-35, PT6A-36,

PT6A-114, PT6A-114A, PT6A-135, PT6A-135A)

M. Interchangeability and Intermixability of Parts

Not applicable.

2. Material Information

A. Industry Support Information

Not applicable.

B. Material - Cost and Availability

Not applicable.

C. Material Necessary for Each Engine

Not applicable.

D. Reidentified Parts

None.






2. Material Information (Cont’d)

E. Tooling - Price and Availability

Not applicable.

3. Accomplishment Instructions

A. Remove the Rear Interconnect Linkage in accordance with the maintenance or overhaulmanual instructions:

v Ref. MM 76-10-00 PROPELLER REVERSING LINKAGE - MAINTENANCEPRACTICES

v Ref. OHM 76-10-00 PROPELLER REVERSING LINKAGE - DISASSEMBLY

B. Remove the threaded adjuster P/N 3012417 from Fuel Control Actuating Lever.

C. Install the threaded adjuster P/N 3012417 (Ref. Fig 1) to Fuel Control Actuating Lever inreverse direction.

D. Install the Rear Interconnect Linkage in accordance with the maintenance or overhaulmanual instructions:

v Ref. MM 76-10-00 PROPELLER REVERSING LINKAGE - MAINTENANCEPRACTICES

v Ref. OHM 76-10-00 PROPELLER REVERSING LINKAGE - ASSEMBLY

E. Write accomplishment of P&WC S.B. No. 1714 in the applicable engine module logbook.

4. Appendix

Not applicable.






(REF.)

PROPELLER REVERSINGCONTROL FOLLOWER LEVER(REF.)

LOCK NUT(REF.)

THREADEDADJUSTERP/N 3012417

PROPELLER CONTROL CAM

FUEL CONTROLLEVER (REF.)

CONTROL LEVER MOUNTING BRACKET(REF.)

APRE−SB1714

POST−SB1714

VIEW B(ASSEMBLED)

+ 0.175 ± 0.005

+ 0.688 ± 0.010

0.458 ± 0.045

− 0.035 ± 0.015

− 0.125 ± 0.010

− 0.245 ± 0.005

+

VIEW A(ASSEMBLED)

(REF.)PROPELLER REVERSINGCONTROL FOLLOWER LEVER(REF.)

(REF.)

THREADEDADJUSTERP/N 3012417

PROPELLER CONTROL CAM

CONTROL LEVER MOUNTING BRACKET(REF.)

LOCK NUT

FUEL CONTROLLEVER

B(REF.)

0.5030.413

+ 0.688 ± 0.010

0.318 ± 0.025

− 0.125 ± 0.010

− 0.245 ± 0.005

+0.3430.293

C211369

Installation of Threaded Adjuster BoltFigure 1






S.I.L NO. PT6A-041R6

SERVICE INFORMATION LETTER

This Service Information Letter is valid until superseded or cancelled by revision

EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: Jul 25/1997 Page 1 of 3 Rev.6. 09 May 2013

PRATT & WHITNEY CANADA CORP. MARIE-VICTORIN, LONGUEUIL

QUEBEC, CANADA J4G 1A1 PRINTED IN CANADA

Subject TBO Escalation Process Through Sampling Applicability PT6A Engines

Purpose:

This revision is issued to advise operators and maintainers of changes to our PT6A Time Between Overhaul (TBO) Service Bulletins (SB). These changes include a TBO maintenance scheduling extension for operator scheduling flexibility and improvements to the TBO escalation process. All operators may take advantage of the maintenance scheduling extension that will now be part of the TBO SB recommendations. Additionally P&WC has commonized the criteria applicable to the TBO Escalation process. The new process reflects latest industry best practices in requiring multiple samples for higher TBO extensions. The ability to increase the TBO on PT6A engines is a testament to their reliability and to the maintenance benefits to our operators. Escalation of TBO’s can also help operators plan for business efficiency.

Introduction:

The intent of this SIL is to describe in general the TBO escalation process, and to offer guidelines to assist operators in taking full advantage of the process.

TBO Escalation Process:

PT6A engines are required to undergo periodic inspection in accordance with a pre-established schedule in order to ensure airworthiness and safety. TBO and Hot Section Inspection (HSI) intervals represent the two major scheduled inspections and are defined in the appropriate SB listed in this SIL.

Steps for TBO Escalation Process:

Identify an engine from your fleet that is due for Overhaul and is representative of your operation and maintenance practices

Ensure the engine meets the sample engine eligibility criteria

Use the maintenance scheduling extension process for opposite engine (twin application)

Complete TBO evaluation Sample Request Form and Fleet Information Form (found in each TBO SB)

Provide a Purchase Order for TBO evaluation. (Refer to PT6A-SIL107 for more information of Fee applicable to TBO escalation)

Send the sample engine to P&WC Service Centre or P&WC Designated Overhaul Facility (DOF) and request a TBO extension evaluation.

The engine will be subject to a “Dirty” and “Clean” inspection and the P&WC Service Centre or P&WC DOF will provide findings to P&WC.

P&WC will evaluate engine condition, completeness of maintenance records and condition of hardware at previous intervals, and may request further information.

If the sample is successful P&WC provides the TBO evaluation letter.

P&WC’s recommendation is subject to local airworthiness approval.

Sample Eligibility: Escalation of an operator’s TBO requires one or two sample engines meeting the following criteria:

PRATT & WHITNEY CANADA SERVICE INFORMATION LETTER

PWC: PT6A-041R6


EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: Jul 25/97 Page 2

Rev.6. 09 May 2013

Operated by the current operator for the majority of the TBO interval. (More than 50%)

Did not have a major repair since the last overhaul (i.e.: All repairs were within the Engine Maintenance Manual (EMM)).

Engine time since new (TSN) is within 250 flight hours from the operator current TBO limit.

Engine operation and maintenance has been in full compliance with applicable Aircraft Pilot Operating Handbook, Aircraft Maintenance Manual, EMM and TBO SB.

Engines must have incorporated only new P&WC parts originally supplied by P&WC or parts shall have been repaired in accordance with P&WC approved repair processes.

Maintenance Scheduling Extension: For an aircraft where the two engines have identical hours, the sample engine should be removed and a Spare / rental engine installed. The process for TBO maintenance scheduling extension for the opposite engine is described in each respective TBO SB. Up to 200 hours or 70 calendar days will be available provided engine performance remains satisfactory in accordance with the applicable P&WC PT6A TBO SB. This will permit continued operation beyond the TBO interval while the sample engine is evaluated and overhauled.

Sample Engine Evaluation: The evaluation consists of two stages; following engine disassembly: 1 - The first portion consists of a visual examination of the components prior to cleaning to assess whether the hardware appears capable of an additional 500 hours of operation. 2 -Following satisfactory completion of this phase, the second portion consists of detailed examination of the components to the requirements of the P&WC Overhaul Manual (OHM). P&WC Review of the Sample engine report: The P&WC Service Centre or P&WC DOF will forward the evaluation report to P&WC. After successful completion of the required number of samples (refer to the respective SB for details) P&WC will issue a letter to the operator stating that a TBO escalation of 500 hours is recommended for the customer’s fleet (refer to the respective SB for details), subject to approval by the local airworthiness authority.

Example: A PT6A-42 engine has a basic TBO of 3600 hours. Both engines on the aircraft have a time since new (TSN) of 3590 hours. The No. 1 engine is removed, sent to a P&WC Service Centre and a spare / rental engine is installed. The maintenance scheduling of 200 hours or 70 calendar days will be used for no 2 engine. Upon successful completion of the sampling process, the operator will now have a TBO of 4100 hours thereby allowing the No. 2 engine to continue to 4100 hours TSN. The operator will then have overhauled only one engine instead of two. The operator will also have deferred the second engine overhaul and all other PT6A-42 in his fleet by 500 hours. When the No. 2 engine reaches TSN of 4100 hours. The operator can use this engine as another sample. Successful evaluation will extend the operator's fleet TBO to 4600 hours. As a result, the operator will have escalated his fleet TBO by 1000 hours (from 3600 to 4600 hours) by staggering the overhauls. If both engines had been overhauled at the same time, the TBO would have only been escalated to 4100 hours. Therefore, the benefits of using this approach for the operator are twofold:

1. Deferral of one overhaul by 500 hours. 2. TBO Escalation of operator's fleet covered by that SB by a total of 1000 hours.


PWC: PT6A-041R6


EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: Jul 25/97 Page 3

Rev.6. 09 May 2013

NOTE: the P&WC recommendation for a TBO increase is provided to the owner of the engine.

List of PT6A TBO SBs:

SB 1003 PT6A-6/-6A/-6B/-25/-25A/-25C/-34B

SB 1303 PT6A-34AG

SB 1403 PT6A-34/-35/-36

SB 3003 PT6A-38/-41/-42-/42A

SB 3303 PT6A-45N/-45B/-45R

SB 4003 PT6A-50

SB 1703 PT6A-114/-114A

SB 1803 PT6A-6C20/-20/-20A/-20B/-21/-27/-28/-135/-135A

SB1903 PT6A-140

SB 12003 PT6A-11/-110/-112/-121

SB 12103 PT6A-11AG/-15AG

SB 13003 PT6A-65AR/-65B/-65R

SB 13203 PT6A-60AG/-65AG

SB 13303 PT6A-60A/-61/-62/-52

SB 14003 PT6A-67D/67R

SB 14303 PT6A-67AF/67F

SB 14503 PT6A-67AG

SB 14603 PT6A-64/-66/-66A/-66B/-66D/-67/-67A/-67B/-67P/-67T

For further information, please contact your local Field Service Representative or CFirst

Customer First Centre Global Number: 1-450-647-8000 USA & Canada: 1-800-268-8000 International (where available) *(IAC): +8000-268-8000

Fax : +1-450-647-2888

E-mail : [email protected]

Visit our website : http://www.pwc.ca

Yours truly, David Meisels Martin Hovington PRATT-& WHITNEY CANADA CORP PRATT-& WHITNEY CANADA CORP Customer Engineering – Turboprops Customer Engineering - Turboprops

mailto:[email protected]

http://www.pwc.ca/




EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: Oct 29/2001 Page 1 of 2 Rev.1. 09 May 2013



Subject Fees Applicable to TBO Extension Recommendations Applicability PT6A Engines

Purpose:

Pratt & Whitney Canada Corp. (P&WC) can provide, upon request and after evaluation, recommendations for

extended Time Between Overhaul (TBO) intervals. Procedures and requirements are further detailed in the

applicable Service Bulletin (SB) covering the "Operating Time Between Overhauls and Hot Section Inspection

Frequency (TBO/HSI)" for the various PT6A engine models.

This SIL is to advise all operators of PT6A engines of the fees applicable for this review and

recommendation service. These fees are associated with the administration and infrastructure required to support

this program. A P&WC recommendation for TBO extension permits continued applicability of the P&WC Extended

Engine Service Policy, ref. SIL GEN-PT6-007.

Fee for Fleet TBO Extension Recommendation (Option A):

The standard fee applicable for P&WC to review a sample inspection report and provide a TBO extension recommendation is $8,000 USD. This fee will be effective May 1

st 2013, and apply to sample evaluation reports

received on or after that date. When two samples are required towards a specific recommendation, the fee is applicable to each sample.

Sample engines have to be inspected at a P&WC Service Centre or at a P&WC Designated Overhaul Facility (DOF).

Fee for Engine Specific TBO Extension Recommendation (Option B):

P&WC can provide a TBO extension recommendation for engines of models for which the engine specific

extension procedure is available. Where available, this procedure is referred to as "Option B" in the applicable

TBO/HSI SB This procedure requires engine Induction into the TBO extension program and enhanced

maintenance standards. It also requires a Review of Continued Applicability after each subsequent overhaul.

Induction is recommended as early as possible after entry into service or overhaul. Induction fees increase with

operating time for engines with more than 1000 hours time since new (TSN) or time since overhaul (TSO) as

applicable.


PWC: PT6A-107R1


EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: Oct 29/2001 Page 2

Rev.1. 09 May 2013

The following fee structure is effective immediately. TSN /TSO Induction Fee (USD) Up to 1000 hrs. $7,000. Above 1000 hrs. $7,000. +

$2 per hour above 1000

NOTE: All TBO extension recommendation fees are subject to changes and annual revisions. Applicants for a TBO extension or applicability review can pay the associated fee as follows:

1. Via a credit card (Visa, MasterCard, American Express), for which you will need to supply your full Company name, address, telephone number, card number and card expiry date and full name of the authorized cardholder; or

2. Via a Purchase Order addressed to P&WC, attention:

Manager, Customer Engineering, mail code 01TS4.

3. Via Wire Transfer, for which you will provide: Name/Address of Bank: Bank Institution Number: Account No.: Name of Recipient: Bank Transit/Sort Code: SWIFT Code:

Yours truly,

David Meisels PRATT-& WHITNEY CANADA CORP Service Engineering - Turboprops



This Service Information Letter is valid until superceded or cancelled by revision.

EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: August 1, 2007 Page 1 of 2 REVISED: May 15, 2013



Subject: Maintenance of Engine Fuel Pump Drive and Coupling Shaft Assembly Applicability: All PT6A Engine Models with Hamilton Sundstrand Fuel Pump Purpose: Advise the field of new Service Bulletin (SB) for a one-time visual inspection and a new inspection frequency in the Engine Maintenance Manuals. There has been recent in-flight incidents due to engine fuel starvation caused by wear on the coupling shaft splines of the Hamilton Sundstrand fuel pump. In December 2005, Pratt & Whitney Canada Corp. (P&WC) issued Service Bulletin’s (SB’s) 1645, 3425, 4229, 12183, 13406 and 14384 for the affected engine models and pumps, to recommend a one-time removal and visual inspection of the fuel pump. In 2007, the Engine Maintenance Manual (EMM) periodic inspection intervals and instructions for the fuel pump in-situ inspection procedures were revised (Ref. EMM 72-00-00 Engine Inspection Table 601 Periodic Inspection) and it was recommended that the same inspections performed per the SB be repeated at the time of every Hot Section Inspection. In 2008, the SB’s regarding the Engine Operating Time Between Overhaul (TBO) were also revised to introduce a new overhaul interval for the HS fuel pump. In 2012, P&WC issued SB 1705, 3446, 4230, 12199, 13465, 14376 for a one-time recommended removal and visual Inspection of the Hamilton Sundstrand fuel pump face for evidence of coupling shaft spline wear and corrosion. In addition, the EMM periodic inspection intervals and instructions for the fuel pump in-situ and visual inspection have been revised (Ref EMM 72-00-00 Engine Inspection Table 601 Periodic Inspection).

PRATT & WHITNEY CANADA SERVICE INFORMATION LETTER S.I.L NO. PT6A-149R4

This Service Information Letter is valid until superceded or cancelled by revision. EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: August 1, 2007 Page 2 of 3 REVISED: May 15, 2013



:

Fuel Pump Face Your co-operation is a vital step in this reliability process. Operators are encouraged to report to P&WC when the fuel pump is rejected. Please fill in the template and send to P&WC. TO: P&WC PT6A Customer Service From: Engine Model: ____________________________________________________

Engine S/N: ____________________________________________________

Fuel Pump P/N: ____________________________________________________

Fuel Pump S/N: ____________________________________________________

Fuel Pump TSN: ____________________________________________________

Fuel Pump TSO: ____________________________________________________ • Please send information to Paul Forest via one of the following:

Fax: (450) 647-6908 E-Mail: [email protected] Mail: PT6A Customer Service

Pratt & Whitney Canada Corp. 1000 Marie-Victorin Mail Stop 01PM4 Longueuil, Quebec (CANADA) J4G 1A1

PRATT & WHITNEY CANADA SERVICE INFORMATION LETTER S.I.L NO. PT6A-149R4

This Service Information Letter is valid until superceded or cancelled by revision. EXPORT CONTROL CLASSIFICATION: This document does not contain technical data. ISSUED: August 1, 2007 Page 3 of 3 REVISED: May 15, 2013



:

Yours truly, PRATT & WHITNEY CANADA CORP.

Annie Gervais, B.Eng. Service Engineering, Customer Support

S.I.L NO. PT6A-208


This Service Information Letter is valid for one year from issuance.

EXPORT CONTROL CLASSIFICATION: This document does not contain technical data.

ISSUED: May 21st, 2013 Page 1 of 2

PRATT & WHITNEY CANADA CORP.MARIE-VICTORIN, LONGUEUIL

QUEBEC, CANADA J4G 1A1

PRINTED IN CANADA

Subject: 2013 PT6A Customer Days and PT6A Events

Applicability: All PT6A Engines

Attention all Owners / Operators and FBO’s operating and maintaining PT6A Powered Aircraft

Pratt & Whitney Canada Corp. (P&WC) is happy to inform Owners, Operators and Maintainers of PT6A poweredaircraft that the PT6A Customer Service team will be supporting several Customer Days and Operator eventsaround the world.

Meet with true PT6A Turboprop experts. Learn more about the operation and maintenance of the PT6A TurbopropEngine and all the benefits that come with P&WC’s global network of repair and overhaul facilities.

Representatives from the Customer Service team will be present at each event to answer your questions anddiscuss any feedback you may have regarding all PT6A Installations. Informative presentations will also take placeat each event for a full overview of engine operation and maintenance.

This year events will be taking place in North America, Europe and Asia Pacific at the following locations, and moredates will be announced when they are available:

May 3-5th

Organized by TBM Owners&Pilots Association

European ConventionLocation: Mallorca, SpainEvent Coordinator: David Fabry

Email : [email protected]

May 24th

Organized by Pratt & Whitney CanadaLocation: Osaka, JapanEvent Coordinator: Hiroyuki Shiozaki


May 27-28th

Organized by Pratt & Whitney CanadaLocation: Xi’an, ChinaEvent Coordinator: Gao Shan


May 30th

Organized by Pratt & Whitney CanadaLocation: Jakarta, IndonesiaEvent Coordinator: Chandra Gunawan


May 30-June 1

Organized by Pilatus Owners & Pilots Association

Annual ConventionLocation :Monterey, Ca, USAEvent Coordinator: Laura Mason

Email: [email protected]

June 8th

Organized by New AvexLocation: Camarillo, California, USAEvent Coordinator: Danielle Quinn


June 25-28th

Candian Business Aircraft AssociationLocation: Vancouver, CanadaWebsite: www.cbaa-acaa.ca

July 29th

– Aug 4th

2013 AirVenture OshkoshLocation : Oshkosh,USAWebsite: http://www.airventure.org/







http://www.cbaa-acaa.ca/

http://www.airventure.org/

PRATT & WHITNEY CANADASERVICE INFORMATION LETTER

P&WC SIL No.: PT6A-208

This Service Information Letter is valid for one year from issuance.

EXPORT CONTROL CLASSIFICATION: This document does not contain technical data.

ISSUED: May 21, 2013 Page 2 of 2

September 18-20th

Beechcraft King Air Operator’s ConferenceLocation: Wichita, Kansas, USAEvent Coordinator: Susie OliverWebsite: www.hawkerbeechcraft.com/customer_support/events/

September 25-28

TBM Owners & Pilots Association

Annual ConventionLocation: Coeur D’Alene, Idaho, USAEvent Coordinator: Bill Alberts


October 22nd

– 24th

PT6A M&O Session at NBAALocation : Las Vegas, Nevada, USAEvent Coordinator: David Meisels

Email: [email protected]

October 30th

– November 2nd

Malibu Meridian Owners&Pilots Association

Annual ConventionLocation: Scottsdale, Arizona, USAWebsite: http://www.mmopa.com/

December 9-12

NAAA AG Annual ConventionLocation: Reno, Nevada.Website: http://www.agaviation.org/content/naaa-annual-convention-exposition

Invitations will be sent directly by the event organizers, however the Event Coordinator or website can be contacteddirectly to inquire about additional details about each event and to express your interest in participating.

In addition, please visit P&WC at our booth at the following events:EBACE: 16 May, Geneva, Switzerland.Agroactiva: 7-8 June - Santa Fe, Argentina.Congresso SINDAG: 26-28 Jun, Campo Grande, Brazil

You can count on Dependable Support from Pratt & Whitney Canada to keep your PT6A Turboprop flying andworking for you.

Yours truly,

David Meisels

Manager, PT6A Customer Management

Customer Service

http://www.hawkerbeechcraft.com/ customer_support/events/

http://www.hawkerbeechcraft.com/ customer_support/events/


http://www.mmopa.com/

http://www.agaviation.org/content/naaa-annual-convention-exposition

http://www.agaviation.org/content/naaa-annual-convention-exposition

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