Service difficulty report · Seal · Cessna 441

Difficulty date
June 23, 2003
Submitted
August 18, 2003
Operation
General aviation
Make and model
Cessna 441
Aircraft time
4,939 hours
Part
Seal
Condition
Leaking
Location
Valve Assembly
Stage of operation
NR
How discovered
9
Nature of condition
K
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) FIREWALL FUEL SHUT OFF VALVE FOUND TO BE LEAKING FUEL EXTERNALLY PAST HARDENED O-RING SEALS. INTERNAL LEAKAGE CAUSED BY INCORRECT SEALS WHICH HAD GONE SOFT LIKE PUTTY AND WERE BREAKING UP.

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