SDR 99ZZZX4440

Service difficulty report · Connecting Rod · Cessna 172RG

Difficulty date: December 9, 1999
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N5244V
Make and model: Cessna 172RG
Aircraft serial: 172RG0481
Engine: Lyc O360F1A6
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Connecting Rod
Condition: Failed
Location: Engine
Part time: 6,287 hours
Stage of operation: NR
Nature of condition: F
Precautionary procedure: O

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

What was found

AIRCRAFT ENGINE SEIZED IN-FLIGHT AND CRACKED LEFT ENGINE CASE HALF. WEATHER CONDITIONS DID NOT EFFECT OUTCOME. ENGINE HAS BEEN 50-HOUR, 100-HOUR, AND ANNUALIZED ITS ENTIRE LIFE. OIL ANALYIS WAS TAKEN LAST. NO ABNORMAL SIGNS OF WEAR. POSSIBLE CAUSE SHOWED SEIZURE OF NR 4 CONNECT ROD ON CRANKSHAFT.

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