SDR 2012FA0000789

Service difficulty report · Camshaft · Cirrus SR22

Difficulty date: November 16, 2012
Submitted: November 30, 2012
Operation: General aviation
Aircraft: N268CD
Make and model: Cirrus SR22
Aircraft serial: 0436
Engine: Cont IO550N
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Camshaft
Condition: Broken
Location: Engine
Part time: 1,081 hours
Stage of operation: IN
How discovered: B
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

AFTER ENGINE FAILURE. REMOVED COWLING, PERFORMED VISUAL INSPECTION OF ENGINE, FOUND NR 3 EXHAUST VALVE PUSH-ROD TUBE HOUSING BROKEN AND PUSH-ROD BENT. REMOVED TOP SPARK PLUGS, THEY APPEARED NORMAL. COMPRESSION CHECK DETERMINED 3 & 5 AND 2 & 4 TO HAVE NO COMPRESSION. INSPECTED ALL CYLINDERS WITH BOROSCOPE, FOUND NO VALVE MOVEMENT ON ALL CYLINDERS. SUSPECT BROKEN CAMSHAFT.

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