SDR 97ZZZX271

Service difficulty report · Plunger · Cessna 402C

Difficulty date
December 23, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N26150
Make and model
Cessna 402C
Aircraft serial
402C0111
Engine
Cont TSIO520UB
Part
Plunger
Part number
642336
Condition
Fod Malfunction
Location
Oil Press Relief
Component
642224
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

MECHANIC NOTICED THAT OIL PRESSURE DROPPED TO ZERO WHEN THROTTLE WAS RETARDED. FOUND 3 PIECES OF SAFETY WIRE STUCK UNDER OIL PRESSURE RELIEF VALVE. REMOVED THE WIRE AND OPS CHECKED GOOD.

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