SDR 95ZZZX2321

Service difficulty report · Camshaft · Beech F33A

Difficulty date: April 20, 1995
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N7289R
Make and model: Beech F33A
Aircraft serial: TC1829
Engine: Cont IO550B
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Camshaft
Condition: Lobes Rounded
Location: Nr 5 Cylinder
Part time: 1,100 hours
Stage of operation: IN
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

PILOT COMPLAINED OF FOULED PLUGS. REMOVED NR 5 CYLINDER, FOUND CAMSHAFT LOBES ROUNDED AND FOLLOWERS SPALLED. ALSO, FOUND VERY VISIBLE WEAR OF THE PISTON PIN. FOUND SOME EVIDENCE THERE MAY HAVE BEEN SOME CORROSION ON PIN AND FOLLOWERS. HOWEVER, THE ENGINE WAS OPERATED REGULARLY. IT HAS ACCUMULATED 1100 HRS IN 4.5 YEARS.

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