SDR CA951026016

Service difficulty report · Top Ring · Piper PA23250

Difficulty date: August 2, 1995
Submitted: March 26, 2000
Operation: Air carrier
Make and model: Piper PA23250
Engine: Lyc IO540C4B5
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Top Ring
Condition: Broken
Location: All Cylinders
Part time: 753 hours
Component: Lyc
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

(CAN)DURING 100 HOUR INSPECTION #1, #5 & #6 CYLINDERS WERE FOUND WITH VERY LOW COMPRESSION AND IT WAS DECIDED TO REPLACE THE CYLINDERS. SHORTLY BEFORE THIS THE ENGINE HAD HIGH OIL COMSUMPTION AND #2, #3 & #4 CYLINDERS HAD TO BE REPLACED. ON ALL CYLINDERS THE TOP PISTON RING WAS BROKEN.

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