BULLETIN INDEX LOCATOR

72-01-40

TURBOPROP ENGINE

FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF

MODEL APPLICATION

PW120, PW121, PW121A, PW124B, PW127, PW127E, PW127F, PW127G, PW127H, PW127M,

PW127N

Compliance: 5

Summary: Multiple service bulletins are needed to introduce the latest fuel nozzle configuration

as a result of improvements to existing parts. Introduce a unique service bulletin that

clearly identifies the requirements to modify fuel nozzles to the latest standard.

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21861

Nov 21/2014 PW100-72-21861

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**
1. Planning Information

A. Effectivity

PW120 Engines which are Post-SB21610.

PW121 Engines which are Post-SB21610.

PW121A Engines which are Post-SB21610.

PW124B Engines which are Post-SB21607.

PW127 Engines which are Post-SB21607

PW127E Engines which are Post-SB21607.

PW127F Engines which are Post-SB21607.

PW127E / PW127F Engines which are before and include Serial No. PCE-EB0366

PW127G Engines which are before and include Serial No. PCE-AX0275

PW127H Engines which are before and include Serial No. PCE-AY0019

PW127M / PW127N Engines which are before and include Serial No. PCE-ED0810

NOTE: 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

P&WC S.B. No. 21803 (FUEL NOZZLE MANIFOLD SYSTEM - MODIFICATION) must

be incorporated prior to or in conjunction with this service bulletin.

P&WC S.B. No. 21841 (FUEL NOZZLE MANIFOLD SYSTEM - REPLACEMENT/

MODIFICATION OF) must be incorporated in conjunction with this service bulletin.

P&WC S.B. No. 21860 (FUEL MANIFOLD GASKET - REPLACEMENT OF) must be

incorporated in conjunction with this service bulletin.

C. Reason

Multiple service bulletins are needed to introduce the latest fuel nozzle configuration as

a result of improvements to existing parts. Introduce a unique service bulletin that

clearly identifies the requirements to modify fuel nozzles to the latest standard.

D. Description

Introduce a unique service bulletin that clearly identifies the requirements to modify fuel

nozzles to the latest standard.

E. Compliance

CATEGORY 5 - P&WC recommends doing this service bulletin at next schedule fuel

nozzle changes.

NOTE: Engines that have already incorporated SB21803, SB21841 and SB21860 have

already complied with the intent of this service bulletin.

P&WC No. DCR28203

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21861

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

Nov 21/2014 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21861

© 2014 Pratt & Whitney Canada Corp. Page 1 of 4

PRINTED IN CANADA

TURBOPROP ENGINE

FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF
1. Planning Information (Cont’d)

F. Approval

Transport Canada has reviewed and approved the technical contents of this Service

Bulletin.

G. Manpower

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

NOTE: No more man-hours are necessary to include this service bulletin during

scheduled fuel nozzle replacement

H. Weight and Balance

None.

I. Electrical Load Data

Not changed.

J. Software Accomplishment Summary

Not changed.

K. References

Illustrated Parts Catalog P/N 3034644 (PW120/121/121A)

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

Illustrated Parts Catalog P/N 3044824 (PW127G)

Illustrated Parts Catalog P/N 3045544 ( PW127H)

Maintenance Manual P/N 3034642 (PW120/121/121A)

Maintenance Manual P/N 3037332 (PW124B/127/127E/127F/127M/127N)

Maintenance Manual P/N 3044822 (PW127G)

Maintenance Manual P/N 3045542 ( PW127H)

Overhaul Manual P/N 3034643 (PW120/121/121A)

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

Overhaul Manual P/N 3044823 (PW127G)

Overhaul Manual P/N 3045543 ( PW127H)

P&WC S.B. No. 21607

P&WC S.B. No. 21610

P&WC S.B. No. 21803

P&WC S.B. No. 21841

P&WC S.B. No. 21848

P&WC S.B. No. 21860

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21861

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

Nov 21/2014 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21861

Page 2 of 4

TURBOPROP ENGINE

FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF
1. Planning Information (Cont’d)

L. Publications Affected

None.

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

Not applicable.

C. Material Necessary for Each Engine

Not applicable.

D. Reidentified Parts

None.

E. Tooling - Price and Availability

Not applicable.

3. Accomplishment Instructions

A. Accomplish SB21803.

B. Install parts introduced under SB21841R2 in accordance with applicable maintenance or

overhaul manual instructions.

C. Install parts introduced under SB21860 in accordance with applicable maintenance or

overhaul manual instructions.

D. Write accomplishment of P&WC S.B. No. 21861 in the applicable engine module log

book.

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21861

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

Nov 21/2014 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21861

Page 3 of 4

TURBOPROP ENGINE

FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF
4. Appendix

Not applicable.

PRATT & WHITNEY CANADA

SERVICE BULLETIN

P&WC S.B. No. 21861

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

Nov 21/2014 The export control classification with respect to this document is contained on the back of the locator. PW100-72-21861

Page 4 of 4

TURBOPROP ENGINE

FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF