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PT6T/ST6T 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
PT6T-055 - J. Stothers Sep 07/2007 Sep 07/2008 PT6T Torque Control PT6T-3,
EXPIRED Unit Airframe Concurrent Requirements PT6T-3B, PT6T-3BE, PT6T-3BG, PT6T-6, PT6T-6B Engines
PT6T-056 - A. Pichette/ J. Stothers Oct 23/2007 Accessory Gearbox Coupling Shaft Bearing Distress All PT6T Engines
PT6T-057 1 J. Stothers Jan 14/2009 Accessory Gearbox Coupling Shaft Bearing All PT6T Engines
PT6T-058 EXPIRED - J. Stothers Dec 19/2008 Dec 19/2009 Data Collection Unit Consistency Check PT6T-9 Engines
PT6T-060 EXPIRED - J. Stothers Dec 08/2008 Dec08/2009 Oil Fill Check Valve SB5459 All PT6T Engines
PT6T-061 - J. Stothers Oct 04/2010 Oct 04/2011 Fuel Filter O-ring Part Number M25988/1-026 Caution During Installation All PT6T Engines
PT6T-062 - J. Stothers R. Pobjoy Dec 06/2010 PT6T Time Between Overhaul Extensions All PT6T Engines
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PT6T/ST6T SIL’s
PRATT & WHITNEY CANADA
NUMERICAL INDEX OF SERVICE INFORMATION LETTERS
SECTION 9 -PT6 (General) SIL’s
S.I.L. No. Rev. No. Originator Date Issued Expiry Date Subject Engine Model Applicability
Gen-PT6-001 EXPIRED - C. A. Tacchi Jan 11/1995 Jan 11/1996 ESP 1995 Hourly Rate Adjustment (Replaces SIL Gen 20109) PT6A-21, A-42, A-60A, A-64, A-66, A-67, A-112, A-114A, PT6B-36A, PT6B-36B, PT6T-3BE Engines
Gen-PT6-002 Never Issued
Gen-PT6-003 - D. K. Clark May 12/1995 PT6 Technical Manuals -Standardization of Chapter Numbers All PT6 Engines
Gen-PT-004 EXPIRED - M. Jaffre Sep 10/1995 Sep 01/1996 Specialized PT6 Component Repairs All PT6 Engines
Gen-PT6-005 Never Issued
Gen-PT6-006 5 A. Chevalier Oct 18/2004 Service Policy for Repaired and Exchanged Parts All PT6 Engines
Gen-PT6-007 4 M. McWilliams Jan 01/2006 Extended Engine Service Policy (EESP) All PT6B, PT6C, PT6T Engines
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