Service difficulty report · Screen · Cessna 414

Difficulty date
November 14, 2002
Submitted
January 6, 2003
Operation
General aviation
Make and model
Cessna 414
Aircraft time
5,120 hours
Engine
Cont TSIO520N
Propeller
Mcauly 3AF32C93
Part
Screen
Part number
C1650010202
Condition
Destroyed
Location
Air/Oil Sep
Component
Air/Oil Sep
Component part number
C1650010202
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

(CAN) DURING OPERATION 1 INSPECT, NON FERROUS METAL FOUND IN LT OIL FILTER AND SCREEN. INSPECTED FILTER AGAIN IN 20 HOURS. IN LESS THAN 15 HOURS OIL WAS DRIPPING ONTO LT MLG. PAINT REMOVED FROM CRANKCASE FWD OF ALTERNATOR, CRACK WAS CONFIRMED BY DEVELOPER. ENG REMOVED FOR CRACK REPAIR AND SHOP NOTIFIED TO INSPECT FOR SOURCE OF CONTAM FOUND IN FILTER AFTER 14.6 HOURS. SHOP COULDN`T FIND SOURCE. RETURN LINE REMOVED FROM AIR/OIL SEPARATOR, METAL FOUND IN HOSE. SEPARATOR, REMOVED, & CUT APART. INSIDE SCREEN & HOLDER HAD VIBRATED APART & ALUMINUM GETTING TO CRANKCASE THROUGH RETURN LINE. PRESS HOSE TO BOOTS & PRESSURE FILTER HAD A LARGE AMOUNT OF METAL SCREEN PARTS TRAPPED INSIDE.

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