SDR 95ZZZX6617

Service difficulty report · Connect Rod · Piper PA28R180

Difficulty date: October 23, 1995
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N7471J
Make and model: Piper PA28R180
Aircraft serial: 28R30824
Engine: Lyc IO360B1E
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Connect Rod
Condition: Bolt Failed
Location: Nr 4 Cylinder
Stage of operation: NR
Nature of condition: E, R, K
Precautionary procedure: O

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

What was found

NR 4 CONNECTING ROD CAP CAME OFF. ENGINE FAILED. ENGINE TEAR DOWN REVEALED THAT ONE NUT CAME OFF OF ONE CONNECTING ROD BOLT AND THE OTHER CONNECTING ROD BOLT BROKE. IT WAS ALSO NOTED THAT ONE CONNECTING ROD BOLT WAS MISSING FROM THE NR 2 CONNECTING ROD. THAT NUT WAS FOUND IN SUMP IN SEVERAL PIECES. THE BOLT WAS NOT FOUND. ENGINE TIMES WERE 1,800 HOURS SMOH, 1,000 HOURS STOH.

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