Service difficulty report · Plug Piston Pin · Piper PA31350

Difficulty date
February 21, 1997
Submitted
March 26, 2000
Operation
General aviation
Make and model
Piper PA31350
Engine
Lyc TIO540J2BD
Part
Plug Piston Pin
Part number
LW11775
Condition
Broken
Location
#5 Cylinder
Part time
1,730 hours
Stage of operation
CR
Nature of condition
B, K, M
Precautionary procedure
E, A

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

What was found

(CAN) PILOT NOTICED RISE IN OIL TEMPERATURE AND SMOKE FROM #2 ENGINE. ENGINE WAS SHUTDOWN AND PRECAUTIONARY LANDING WAS CARRIED OUT. POST FLIGHT INSPECTION FOUND THE #2 ENGINE, #5 CYLINDER PISTON PIN PLUG BROKEN AND THE DEBRIS HAD SEIZED THE RINGS CAUSING THE CRANKCASE TO PRESSURIZE AND DISCHARGE OIL OUT OF THE OIL BREATHER PIPE.

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