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PT6A SIL’s
PRATT & WHITNEY CANADA
NUMERICAL INDEX OF SERVICE INFORMATION LETTERS
S.I.L. No. Rev. No. Originator Date Issued Expiry Date Subject Engine Model Applicability
PT6A-095 EXPIRED - P. Del Grande Dec 12/2000 Dec 12/2001 Recommended Service Bulletin List PT6A-60AG Engines
PT6A-096 EXPIRED 1 P. Del Grande Mar 12/2001 Mar 12/2002 Recommended Service Bulletin List PT6A-67A Engines
PT6A-097 Never Issued
PT6A-098 Never Issued
PT6A-099 Never Issued
PT6A-100 EXPIRED - R. Day May 12/2000 May 12/2001 Bleed Valve Calibration Shift PT6A-114A Engines
PT6A-101 EXPIRED 1 P. Del Grande Apr 09/2001 Apr 09/2002 Potential Replacement of the Plain Seal at the Accessory Gearbox Starter-generator Drive All PT6A and PT6B Engines
PT6A-102 EXPIRED - P. Del Grande Jun 29/2001 Jun 20/2002 High Interturbine Temperature During Ground Idle Operation PT6A-42A Engines
PT6A-103 1 G. Mulas Dec 17/2004 Propeller Governor Assembly -Replacement of Beta Valve Packing PT6A-60A, PT6A-60AG, PT6A-65AR, PT6A-65B, PT6A-65R Engines
PT6A-104 2 G. Mulas Jun 14/2011 Recommended Minimum Service Bulletin List PT6A-62 Engines
PT6A-105 EXPIRED - P. Del Grande Sep 24/2001 Sep 24/2002 Recommended Oil Operating Pressures PT6A-68 Engines
PT6A-106 EXPIRED 1 P. Del Grande Nov 11/2002 Nov 11/2003 Presence of Silver Flakes in the Oil System All PT6A Engines
PT6A-107 - P. Del Grande Oct 29/2001 Fees Applicable to TBO Extension Recommendations All PT6A 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
PT6A-108 EXPIRED 1 P. Del Grande Jul 18/2002 Jul 18/2003 Revised Procedures for TBO Extension PT6A-6/C-20, PT6A-20,
Recommendations PT6A-20A,
PT6A-20B,
PT6A-21,
PT6A-27,
PT6A-28,
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