Service difficulty report · Camshaft · Moravn Z242L

Difficulty date
June 12, 2003
Submitted
July 14, 2003
Operation
General aviation
Make and model
Moravn Z242L
Aircraft time
4,646 hours
Engine
Lyc AEIO360A1B6
Propeller
Muhbr MTV9*
Part
Camshaft
Part number
LW18840
Condition
Spalled
Location
Engine
Stage of operation
IN
How discovered
9
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) THE ENGINE WAS SENT IN FOR INSPECTION DUE TO METAL CONTAMINATION. TWO PROBLEMS WERE DISCOVERED. FIRST, THE CONNETING ROD CAPS WERE CONTACTING THE OPPOSING PISTON SKIRTS, THE CAPS WERE FOUND TO BE APPROXIMATELY .020 THICKER THAN SEVERAL OTHERS MEASURED. THE SECOND PROBLEM FOUND WAS SPALLING ON MOST OF THE CAMSHAFT LOBES. BOTH THESE PROBLEMS CONTRIBUTED TO THE METAL CONTAMINATION. THE CYLINDERS, PISTONS A ND CAMSHAFT WERE ALL REPLACED WITH FACTORY NEW PARTS.