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-128 - G. Mulas Sep 22/2004 PT6A-67B In-Flight Shut-Down Event following malfunctioning Fuel Control Bellows PT6A-67B Engines
PT6A-129 - P. Boyd Dec 22/2004 Dec 22/2005 Heat-treatment of PT6A-64,
EXPIRED Power Turbine Stator Housings PT6A-66, PT6A-66A, PT6A-67, PT6A-67A, PT6A-67AF, PT6A-67AG, PT6A-67B, PT6A-67D, PT6A-67R, PT6A-67T, PT6A-68, PT6A-68B, PT6A-68C Engines
PT6A-130 2 P. Duhamel Jul 13/2010 Diagnostics, Prognostics and Health Management (DPHM) Service -CANCELLED PT6A-68B, PT6A-68C Engines
PT6A-131 - G. Mulas Jan 13/2005 PT6A-67B In-Flight Shutdown Event Following Fuel Control Pneumatic System Malfunctioning PT6A-67B Engines
PT6A-133 - G. Mulas Mar 09/2005 Recommended Service Bulletin List PT6A-20 Engines
PT6A-134 - G. Mulas Mar 08/2005 Warranty Coverage for Main Oil Pressure (MOP) pump events occurring beyond the Basic Warranty Period PT6A-134 Engines
PT6A-135 0 M. McWilliams Jan 01/2006 Extended Engine Service Policy (EESP) All PT6A Engines
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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-136 - K. Blackie May 20/2005 May 20/2006 Interactive Electronic PT6A-60A
EXPIRED Technical Manuals (IETM) on CD-ROM PT6A-60AG/-61, PT6A-62, PT6A-64, PT6A-65AG, PT6A-65AR, PT6A-65B, PT6A-65R, PT6A-66, PT6A-66A, PT6A-67, PT6A-67A, PT6A-67AF, PT6A-67AG, PT6A-67R, PT6A-67T, PT6A-67B PT6A-67D, PT6A-68, PT6A-68B, PT6A-68C Engines
PT6A-140 - G. Mulas Apr 21/2006 Inspection of the Fuel Pump Filter P/n 3070220-01 All PT6A Engines
PT6A-141 3 G. Mulas Jun 19/2009 Jun 19/2010 Introduction of PT6A-64,
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