BULLETIN INDEX LOCATOR

72-50-01

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF

MODEL APPLICATION

PW118A, PW118B, PW119B, PW119C, PW123, PW123B, PW123C, PW123D, PW123E,

PW123AF, PW124B, PW125B, PW126, PW126A, PW127, PW127B, PW127D, PW127E, PW127F,

PW127G, PW127H, PW127J, PW127M

Commercial Support Program No: 1006354

Compliance: CATEGORY 5

Summary: This service bulletin provides instructions for a one time inspection on a range of First

Stage Power Turbine (PT1) blades part numbers and serial numbers as per an

improved X-Ray inspection as currently used in manufacturing.

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

Sep 27/2012 PW100-72-21823

Revision No. 2: Nov 15/2012 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′′), which

P&WC provides in confidence and solely for the purposes of supporting engine certification and

providing applicable information regarding the proper use, maintenance, inspection, repair, servicing

and parts application of P&WC products and services, as directed therein. Neither this bulletin nor

any information in it may be disclosed to others, or used for any other purpose, including, without

limitation, to design, create, develop, reproduce, manufacture or derive any design, part, product,

material, process, modification, configuration change or repair, or obtain FAA or other government

approval to do so. Possession and use of this bulletin is also subject to the restrictions set out in

P&WC’s Technical Data Agreement (a copy of which may be obtained by contacting P&WC Technical

Publications). The contents of this bulletin may be subject to export control laws. Unauthorized export

or 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 be

given 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 Import

Controls Bureau of the Department of Foreign Affairs and

International Trade of Canada, Department of Commerce

of the United States and/or Department of State of the

United States.

** Data is not subject to the jurisdiction of the Department

of Commerce of the United States or Department of State

of the United States but would become subject if exposed

to any US involvement.

Regulation Classification

Number

Canadian ECL(s)*

ECCN(s)*

P-ECCN(s)** 9E991

USML (ITAR)*

P-USML**
REVISION TRANSMITTAL SHEET

TURBOPROP ENGINE MODEL PW100

SUBJECT: Pratt & Whitney Canada Service Bulletin No. PW100-72-21823, Rev. No. 2, dated Nov

15/2012 (P&WC S.B. No. 21823R2) FIRST STAGE POWER TURBINE BLADES -

INSPECTION/REPLACEMENT OF

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

superseded copy.

Please retain this Revision Transmittal Sheet with the revised bulletin.

SUMMARY: This service bulletin is revised to

v change address and contact person of company authorized to X-ray inspect blades.

v Update 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: Sep 27/2012

Revision No. 1: Oct 09/2012

Revision No. 2: Nov 15/2012

Pratt & Whitney Canada Corp.

1000, Marie-Victorin

Longueuil, Québec, Canada J4G 1A1

Tél. 450-677-9411

15 November 2012

P&WC S.B. No. 21823R2

1. Planning Information

A. Effectivity

PW118A/PW118B Engines

PW119B/PW119C Engines

PW123 Engines which are between and include Serial No. PCE-AE0106 and Serial No.

PCE-AE0151

PW123B Engines which are between and include Serial No. PCE-AR0046 and Serial

No. PCE-AR0056

PW123C Engines

PW123D Engines which are between and include Serial No. PCE-AG0127 and Serial

No. PCE-AG0143

PW123E Engines which are between and include Serial No. PCE-AW0114 and Serial

No. PCE-AW0160

PW123AF Engines which are between and include Serial No. PCE-AF0088 and Serial

No. PCE-AF0128

PW124B Engines

PW125B Engines

PW126 / PW126A Engines

PW127 Engines

PW127B Engines

PW127D Engines

PW127E / PW127F Engines which are between and include Serial No. PCE-EB0210

and Serial No. PCE-EB0365

PW127G Engines which are between and include Serial No. PCE-AX0072 and Serial

No. PCE-AX0151

PW127H Engines which are between and include Serial No. PCE-AY0010 and Serial

No. PCE-AY0019

PW127J Engines which are between and include Serial No. PCE-EA0037 and Serial

No. PCE-EA0155

PW127M Engines which are between and include Serial No. PCE-ED0001 and Serial

No. PCE-ED0113

NOTE: 1. The above effectivity list identifies engines with PT1 blade serial numbers

listed in Table 1 (P/N 3120973-01, 3120983-01, 3054053-01).

NOTE: 2. The above effectivity list does not identify engines with PT1 blades replaced

or installed as new at an approved overhaul shop.

NOTE: 3. The above effectivity list does not identify engines that have been converted

from one engine model to another engine model via an engine conversion

service bulletin. To clarify the effectivity of converted engines, refer to the

PW100 Workscope Planning Guide, P/N 3040879, Converted Engines

section.

B. Concurrent Requirements

None.

P&WC No. DCR20348

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

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

Sep 27/2012 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21823

Revision No. 2: Nov 15/2012 Page 1 of 6 © 2012 Pratt & Whitney Canada Corp.

PRINTED IN CANADA

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF
1. Planning Information (Cont’d)

C. Reason

This service bulletin provides instructions for a one time inspection on a range of First

Stage Power Turbine (PT1) blades part numbers and serial numbers as per an improved

X-Ray inspection as currently used in manufacturing.

D. Description

Perform a one time X-Ray inspection of PT1 blades listed in Table 1.

E. Compliance

CATEGORY 5 - P&WC recommends to do this service bulletin when the engine is

disassembled and access is available to the necessary subassembly

(i.e. module, accessories, components, or build groups). Do all

spare subassemblies.

F. Approval

D.A.A. approved

G. Manpower

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 changed.

K. References

Illustrated Parts Catalog P/N 3034624 (PW118/118A/118B)

Illustrated Parts Catalog P/N 3038534 (PW119B/119C)

Illustrated Parts Catalog P/N 3036434 (PW123/123B/123C/123D/123E)

Illustrated Parts Catalog P/N 3034540 (PW123AF)

Illustrated Parts Catalog P/N 3037334 (PW124B/127/127E/127F/127M)

Illustrated Parts Catalog P/N 3039724 (PW127B)

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

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

Sep 27/2012 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21823

Revision No. 2: Nov 15/2012 Page 2 of 6

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF
1. Planning Information (Cont’d)

Illustrated Parts Catalog P/N 3034924 (PW126/126A/127D)

Illustrated Parts Catalog P/N 3044824 (PW127G)

Illustrated Parts Catalog P/N 3045544 ( PW127H)

Illustrated Parts Catalog P/N 3043394 (PW127J)

Overhaul Manual P/N 3034623 (PW118/118A/118B)

Overhaul Manual P/N 3036433 (PW123/123B/123C/123D/123E)

Overhaul Manual P/N 3034539 (PW123AF)

Overhaul Manual P/N 3037333 (PW124B/127/127E/127F/127M)

Overhaul Manual P/N 3034933 (PW125B/PW127B)

Overhaul Manual P/N 3034923 (PW126/126A/127D)

Overhaul Manual P/N 3044823 (PW127G)

Overhaul Manual P/N 3045543 ( PW127H)

Overhaul Manual P/N 3043393 (PW127J)

Service Information Letter No. PW100-151

Special Instruction No. 70-2012

Cleaning Inspection Repair Manual (CIR) 3043515

L. Publications Affected

None.

M. Interchangeability and Intermixability of Parts

Not applicable.

2. Material Information

A. Industry Support Information

Refer to Commercial Support Program Notification number 1006354

B. Material - Cost and Availability

Not applicable.

C. Material Necessary for Each Engine

Not applicable.

D. Reidentified Parts

None.

E. Tooling - Price and Availability

Not applicable.

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

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

Sep 27/2012 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21823

Revision No. 2: Nov 15/2012 Page 3 of 6

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF
3. Accomplishment Instructions

A. Disassemble the first stage PT blades. Refer to the instructions in the applicable

overhaul manual (Ref. Chapter 72-50-00, TURBINE SECTION - DISASSEMBLY).

B. Clean the first stage PT blades. Refer to the instructions in the applicable PW100 CIR

manual (Ref. Chapter 72-53-12, FIRST-STAGE PT BLADE - CLEANING-01/CLEANING02).

C. Perform a visual inspection of the blades for part number and serial number listed in

Table 1.

D. For blades with suffix R2 next to part number go to step G.

E. For blades with part number and serial number not listed in Table 1, no further action is

required. Go to step G.

F. For blades with part number and serial number listed in Table 1, do one of the following:

(1) Replace with new serviceable blade. Go to step G.

NOTE: Retain old PT1 blades listed in Table 1, as replacement of blades is

subject to hardware availability.

(2) Inspect first stage PT blades, (Refer to the instructions in the applicable PW100

CIR manual (Ref. Chapter 72-53-12, FIRST-STAGE PT BLADE - INSPECTION/

CHECK-01/-02/-03)) and perform X-Ray inspection of the PT1 blades.

(a) Send blades to the following address for X-Ray inspection as per SI 70-2012:

Pratt & Whitney Canada Corp.

P&WC Service Center

7007 De La Savane,

St. Hubert, Quebec

Canada J3Y 3X7

Attention: Pierre Verrier (05AK2)

OR

NDT EXPERT

Parc d’Activités de Saint-Martin du Touch

18 Rue Marius Terce

Toulouse Cedex 3

France BP 13033 - 31024

Attention: Eric Malarme, Directeur des Opérations

TEL: +33 5 34 36 12 12

FAX: +33 5 34 36 12 22

EMAIL: e.malarme@ndt-expert.fr

OR

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

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

Sep 27/2012 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21823

Revision No. 2: Nov 15/2012 Page 4 of 6

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF
3. Accomplishment Instructions (Cont’d)

SETSCO SERVICES PTE LTD

Setsco Aerospace Testing Centre

20 Changi North Crescent

Singapore 499613

Attention: Palanivelu Ratnavelu

TEL: (65) 6542 8442/3

(65) 8499 2401 (Mobile)

EMAIL: ratna@setsco.com

NOTE: This additional X-ray inspection does not replace the existing

inspection and requirements per the relevant Overhaul Manual to

determine if a blade is serviceable.

1 For blades rejected at X-ray inspection, do the following:

a Replace with new, serviceable blade.

b Record blade information (Engine S/N, blade P/N, blade S/N, blade

TTSN) and send blade with its information to the following P&WC

address:

Pratt & Whitney Canada Corp.

MQA X-Ray Lab

1000 Boul. Marie-Victorin,

Longueuil, Quebec

Canada J4G 1A1

Attention: Frank Miranda / Michael Polletta

WARNING: USE EYE PROTECTION WHEN YOU WRITE WITH THE

VIBRATION PEENING PROCEDURE.

2 For blades that have passed the x-ray inspection, use the vibration peening

procedure, 0.003 to 0.006 in. (0.08-0.15 mm) deep, and write the suffix R2

next to the blade part number.

G. Assemble the Power Turbine Disk Assembly (First-stage) - Subassembly. Refer to the

instructions in the applicable overhaul manual :

v Ref. OHM, Chapter 72-50-00, TURBINE SECTION - SUBASSEMBLY-1

H. Write accomplishment of P&WC S.B. No. 21823 in the applicable engine module log

book.

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

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

Sep 27/2012 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21823

Revision No. 2: Nov 15/2012 Page 5 of 6

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF
4. Appendix

A. Refer to Table1 for range of First Stage Power Turbine Blade Serial Numbers to be

X-ray inspected at next shop visit.

TABLE 1, First Stage Power Turbine Blade Serial Numbers

Part Numbers Serial No. Range

3120973-01

3120983-01

3054053-01

HMM00000 TO HMM99999

HMN00000 TO HMN99999

HMP00000 TO HMP99999

HMQ00000 TO HMQ99999

HWA00000 TO HWA99999

HWAB0000 TO HWAB9999

HWAC0000 TO HWAC9999

HWAD0000 TO HWAD9999

HWAE0000 TO HWAE9999

HWAF0000 TO HWAF9999

HWAH0000 TO HWAH9999

HWAK0000 TO HWAK9999

HWAL0000 TO HWAL9999

HWAM0000 TO HWAM9999

HWAN0000 TO HWAN9999

HWAP0000 TO HWAP9999

HWAR0000 TO HWAR9999

HWAT0000 TO HWAT9999

HWAW0000 TO HWAW9999

HWAX0000 TO HWAX9999

HWAY0000 TO HWAY8649

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21823R2

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

Sep 27/2012 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21823

Revision No. 2: Nov 15/2012 Page 6 of 6

TURBOPROP ENGINE

FIRST STAGE POWER TURBINE BLADES - INSPECTION/REPLACEMENT OF