SDR 97ZZZX798

Service difficulty report · Cylinder · Cessna 152

Difficulty date: January 28, 1997
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N6599B
Make and model: Cessna 152
Aircraft serial: 15283958
Engine: Lyc O235L2C
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Cylinder
Part number: SL10301A1
Condition: Failed
Location: Nr 3 Cyl Exh Vlv
Part time: 1,432 hours
Stage of operation: NR
Nature of condition: E, R, K
Precautionary procedure: A

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

What was found

EXHAUST VALVE IN CYLINDER NR 3 BROKE AT STEM, INGESTING INTO CYLINDER, CREATING A HOLE IN THE PISTON. PIECES OF VALVE AND PISTON ENTERED ENGINE, CONTAMINATING THE OIL. AN OFF AIRPORT LANDING WAS MADE WITHOUT INCIDENT. AFTER TEAR DOWN, THE CONNECTING ROD WAS FOUND BENT AND CRACKED.

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