# 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.caWARNING - 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 The export control classification with respect to this document is contained on the back of the locator. Nov 21/2014 PW100-72-21861 Page 1 of 4 © 2014 Pratt & Whitney Canada Corp. PRINTED IN CANADA TURBOPROP ENGINE FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF1. 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 The export control classification with respect to this document is contained on the back of the locator. Nov 21/2014 PW100-72-21861 Page 2 of 4 TURBOPROP ENGINE FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF1. 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 The export control classification with respect to this document is contained on the back of the locator. Nov 21/2014 PW100-72-21861 Page 3 of 4 TURBOPROP ENGINE FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF4. 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 The export control classification with respect to this document is contained on the back of the locator. Nov 21/2014 PW100-72-21861 Page 4 of 4 TURBOPROP ENGINE FUEL NOZZLE CONFIGURATION - MODIFICATION REQUIREMENTS OF