PRATT & WHITNEY CANADA
NUMERICAL INDEX OF SERVICE INFORMATION LETTERS
S.I.L. No.  Rev. No.  Originator  Date Issued  Expiry Date  Subject  Engine Model Applicability 
PW500-014  1  A. Best  Dec 23/2004  Fuel Manifold Leaks  PW530A, PW535A, PW545A, PW545B Engines 
PW500-015  - A. Best  Apr 10/2003  PW545A Fan Case Extension Cracking  PW545A Engines 
PW500-016  - A. Best  Apr 10/2003  PW545A ITT & N2 Splits in Climb  PW545A Engines 
PW500-018  I. Matthews  Jun 30/2003  PW500 High ITT:  PW530A, PW535A, PW545A Engines 
PW500-019  A. Best  Nov 12/2003  T1-FCU Sensor and FCU Acceleration Adjustment  PW535A, PW545A Engines 
PW500-020  - A. Best  Apr 07/2004  Use of Continuous Ignition when N2 Speed is Below 70%  PW545A Engines 
PW500-021  - C. Meadows D. Marchand  Mar 16/2005  Fuel System and Fuel Control Unit (FCU) Cleanliness During Maintenance  PW530A, PW535A, PW545A, PW545B Engines 
PW500-022  0  M. McWilliams  Jan 01/2006  Extended Engine Service Policy (EESP)  PW530A, PW535A, PW545A, PW545B Engines 
PW500-023 EXPIRED  - A. Best  Oct 13/2005  Oct 13/2006  PW545A Commercial Support Programs Due for Closure  PW545A Engines 
PW500-024  1  L. Dubois  Aug 10/2011  Web-Based Engine Condition Trend Monitoring (WebECTM) Services -CANCELLED  All PW500 Engines 
PW500-025 EXPIRED  0  A. Best  Sep 27/2006  Sep 27/2007  PW535A Field Events of Engine Fire  PW535A Engines 
PW500-026  1  A. Best  Apr 30/2007  Oil Consumption & Oil System Servicing  All PW500 Engines 

PRATT & WHITNEY CANADA
NUMERICAL INDEX OF SERVICE INFORMATION LETTERS
S.I.L. No.  Rev. No.  Originator  Date Issued  Expiry Date  Subject  Engine Model Applicability 
PW500-027  A. Best  May 14/2007  May 14/2008  On-Wing Low  PW530A, 
EXPIRED  Utilization Engine  PW535A, 
Inspection  PW535B, 
PW545A, 
PW545B 
Engines 
PW500-028  A. Best  Jul 31/2007  PW545A/B Gas Generator Case to Intermediate Case Flange Bolt Loosening  PW545A, PW5435B Engines 
PW500-029  3  P. Duhamel  Jul 13/2010  Diagnostics, Prognostics and Health Management (DPHM) Package -CANCELLED  PW535B, PW535E, PW545A, PW545B, PW545C Engines 
PW500-031  A. Best  Nov 02/2007  Nov 02/2008  PW535B Electronic  PW535B 
EXPIRED  Engine Control (EEC) Software Upgrade P&WC SB30341  Engines 
PW500-033  0  A. Fortier  Apr 23/2008  Oil Consumption & Oil System Servicing  All PW500 Engines 
　
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