SDR 20000328SH020

Service difficulty report · Retainer Seal · Mooney M20J

Difficulty date: February 8, 2000
Submitted: March 28, 2000
Operation: General aviation
Aircraft: N3935H
Make and model: Mooney M20J
Aircraft serial: 240982
Engine: Lyc IO360A3B6
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Retainer Seal
Part number: 65007
Condition: Damaged
Location: Nr 1 Cylinder
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

DURING ANNUAL INSPECTION, DISCOVERED NR 1 CYLINDER EXHAUST PUSH ROD TUBE SEAL AREA AT CASE HALF RETAINER PROTRUDING AT AN ANGLE. REMOVED NR 1 EXHAUST PUSH ROD, FOUND LIFTER BODY CRACKED, AND BROKEN. LIFTER WILL NOT COME OUT. SUBMITTER SUSPECTED CAUSE WAS STUCK EXHAUST VALVE AT SOME TIME. ENGINE IS AT TBO AND WILL BE REPLACED. (X)

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