SDR 99ZZZX2800

Service difficulty report · Cylinder · Beech D55

Difficulty date: July 20, 1999
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N7725R
Make and model: Beech D55
Aircraft serial: TE644
Engine: Cont IO520C
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Cylinder
Part number: 649166
Condition: Broken
Location: Engine
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

DURING CRUISE FLIGHT, LEFT ENGINE BEGAN TO RUN ROUGH. PILOT FEATHERED ENGINE. A NORMAL SINGLE ENGINE LANDING WAS MADE. FOUND NR 3 CYLINDER BROKEN HALF WAY BETWEEN FLANGE AND BOTTOM OF HEAD. PISTON CAME OUT AND BROKE. CASE BROKE ALSO, STEEL CYLINDER.

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