Service difficulty report · Plug · Cessna 172S

Difficulty date
June 8, 2000
Submitted
June 23, 2000
Operation
Air carrier
Aircraft
N789EP
Make and model
Cessna 172S
Aircraft serial
172S8135
Engine
Lyc IO360L2A
Part
Plug
Part number
LW11775
Condition
Worn
Location
Piston Pin
Part time
688 hours
Component
Cylinder Assy · Lyc
Component part number
LW12427
Stage of operation
IN
How discovered
V
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

PERFORMED LYC SI 1492B. DURING PHASE 2 INSPECTION, OIL FILTER WAS REMOVED AND CUT OPEN FOR INSPECTION. AN EXCESSIVE AMOUNT OF ALUMINUM FLAKES WERE DISCOVERED. ALL 4 CYLINDERS REMOVED ENOUGH TO INSPECT AND REPLACED 8 WORN PISTON PIN PLUGS WITH PN 60828 PLUGS. REINSTALLED CYLINDERS WITH NEW CYLINDER BASE SEALS, INTAKE GASKETS, PUSHROD SEALS AND VALVE COVER GASKETS. PERFORMED OPERATIONAL CHECK, CHECKED SATISFACTORY. (X)

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