79-11-03 PRATT & WHITNEY AIRCRAFT OF CANADA: Amendment 39-3477. Applies to Pratt & Whitney Aircraft of Canada, Limited PT6T-3 power sections prior to serial number CP-PS 61324 and PT6T-6 power sections prior to serial number CP-PS 72321.
Compliance required within the next 3000 hours in service after the effective date of this AD, unless already accomplished.
To preclude automatic fuel control contamination install the P3 air filter and associated parts in accordance with Paragraph 2, Accomplishment Instructions in Pratt & Whitney Aircraft of Canada, Ltd. Engine Service Bulletin No. 5124 thru Revision 3 or approved equivalent procedures and parts.
Equivalent procedures and parts must be approved by the Chief, Engineering and Manufacturing Branch of the Eastern Region of the Federal Aviation Administration (FAA).
This amendment is effective May 31, 1979.