SDR 97ZZZX4212

Service difficulty report · Cover Plate · Mooney M20F

Difficulty date: August 1, 1997
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N9595M
Make and model: Mooney M20F
Aircraft serial: 670172
Engine: Lyc IO360A1A
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Cover Plate
Part number: 7510
Condition: Displaced
Location: Nr 1 Intake
Stage of operation: CR
Nature of condition: E, R
Precautionary procedure: A

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

What was found

ENGINE BEGAN TO RUN ROUGH IN FLIGHT, PRECAUTIONARY LANDING. FOUND INTAKE ROCKER SHAFT ON NR 1 CYLINDER HAD MOVED OUT OF POSITION DUE TO LOSS OF COVER PLATE, 7510. CAUSE OF COVER PLATE LOSS UNDETERMINED. SUBMITTER RECOMMENDS PERIODICAL RE-CHECK OF COVER PLATE NUT TORQUE.

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