SDR 2005FA0000951

Service difficulty report · Connecting Rod · Cessna U206G

Difficulty date: May 24, 2005
Submitted: July 8, 2005
Operation: General aviation
Aircraft: N4950Z
Make and model: Cessna U206G
Aircraft serial: U20606055
Aircraft time: 2,300 hours
Engine: Cont IO550F
Engine time: 601 hours
Propeller: Mcauly D3A34C402
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Connecting Rod
Condition: Failed
Location: Engine
Part time: 601 hours
Stage of operation: DE
How discovered: O
Nature of condition: R, J
Precautionary procedure: A

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

What was found

IN SLOW DESCENT FOR LANDING AT 3,000 FT AGL, SEVERE VIBRATION OCCURRED AND THEN WITHIN 30 SECONDS A LOUD BANG AND OIL COVERING WINDSHIELD AND SIDE WINDOWS. DIVERTED FLT ABOUT 5-6 MILES AWAY AND MADE SAFE LANDING AT AIRPORT. UPON INSPECTION, NR 2 ROD PENETRATED TOP OF ENGINE CASE AND SUBSEQUENTLY SHEARED MAGNETO OFF OF CASE. SOME INDICATION OF CRANKSHAFT FAILURE, BUT UNKNOWN AT THIS TIME AS MFG HAS REQUESTED TO TEAR DOWN ENGINE AT FACTORY.

More about the Cessna U206G