SDR 99ZZZX3157

Service difficulty report · Keeper · Piper PA31350

Difficulty date: July 25, 1999
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N711WX
Make and model: Piper PA31350
Aircraft serial: 317552131
Engine: Lyc TIO540J2BD
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Keeper
Condition: Failed
Location: Intake Valve
Stage of operation: NR
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT ENGINE NR 2 INTAKE VALVE KEEPER BROKE CAUSING VALVE TO HIT PISTON. PERFORMED TOP OVERHAUL. CLEANED OUT ALL OIL HOSES, CHECKED CRANKSHAFT FOR SCORING, CLEANED INTAKE SYSTEM. FIVE HOURS LATER (TOP) INTAKE VALVE AND PISTON WERE BEAT UP BY A PIECE OF METAL. ENGINE. REMAINED OUT OF SERVICE FOR TEAR DOWN.

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