These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
Schweizer Aircraft Corporation Model 269D Helicopters
Feb 3, 1999
Airframe (269D)Only with: Large diameter main rotor hub P/N 269A1002-11 and main rotor drive shaft P/N 269A5305-139, -143, -145, or -147 installed.
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (1)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
Engine oil · impeller · crackedMay 9, 2012
OIL COOLER IMPELLER WAS INSPECTED FOR CRACKS IN THE BLADE/SHOUD REGION IAW MFG RECOMMENDATIONS EVERY 100 HRS OF OPERATION. 2 CRACKS WERE CONFIRMED AND SEVERAL OTHERS SUSPECTED. THE CURRENTLY MFG IMPELLER, 269D4530-001, IS APPARENTLY THE LATEST GENERATION THAT EVOLVED FROM PREVIOUS INCIDENTS AND…
From FAA Service Difficulty Reports; matched by N-number and serial number.