PRATT & WHITNEY CANADA 
NUMERICAL INDEX OF SERVICE INFORMATION LETTERS 
S.I.L. No.  Rev. No.  Originator  Date Issued  Expiry Date  Subject  Engine Model Applicability  
JT15D-029  - J. Blondeau  Dec 12/2000  Main Shaft Bearings Commercial Package  All JT15D Engines  
JT15D-030 EXPIRED  - J. Blondeau  Feb 04/2000  Feb 4/2001  FCU Issued  JT15D-5D Engines  
JT15D-031 EXPIRED  - J. Blondeau  Aug 24/2000  Aug 24/2001  JT15D-5/5B/5F Hydro-Mechanical Unit (HMU)  JT15D-5, JT15D-5B, JT15D-5F Engines  
JT15D-032  - A. Best  Apr 03/2002  Boost Rotor, Pre Service Bulletin (SB) 7569  JT15D-5D Engines  
JT15D-033  - Never Issued  
JT15D-034  - A. Best  Nov 15/2001  Fees Applicable to TBO Extension Recommendations  All JT15D Engines  
JT15D-035  - A. Best  Jan 21/2002  Engine Hung Start Trouble Shooting -Cold Weather Condition  JT15D-5 Engines  
JT15D-036  - A. Chevalier  May 01/2002  Clari.cation of Pratt & Whitney Canada Corp.’s Engine Primary Parts Service Policy  JT15D-1/1A/1B, JT15D-4/4B/4D, JT15D-5/5A/5D, JT15D-5B Engines  
JT15D-037  2  L. Dubois  Aug 10/2011  Web-Based Engine Condition Trend Monitoring (WebECTM) Services -CANCELLED  All JT15D Engines  
JT15D-038  - Alex Best/Peter Boyd  Mar 15/2004  Mar 15/2005  Hydraulic pre-loading assembly method for LP and HP turbine rotor assemblies CANCELLED  JT15D-1, JT15D-4, JT15D-5 Engines  
JT15D-039  - A. Best  Oct 18/2004  High Turbine Rotor Blade for JT15D-1 and D-4 Series Engines  JT15D-1 JT15D-4 Engines  
JT15D-040  - A. Best  Feb 06/2006  Speci.c Maintenance Programs  All JT15D Engines  
JT15D-041  - A. Best  Mar 23/2007  High Pressure Turbine Disk -Indications in the Blade Serration  JT15D-5, JT15D-5A, JT15D-5B, JT15D-5D Engines 
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