Service difficulty report · Fire Loop · Beech 1900D

Difficulty date
November 7, 2006
Submitted
December 5, 2006
Operation
General aviation
Aircraft
N534M
Make and model
Beech 1900D
Aircraft serial
UE333
Engine
Pwa PT6A67D
Propeller
Hartzl HCE4A3I
Part
Fire Loop
Part number
24412886
Condition
Malfunctioned
Location
Rt Engine
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

ON 10/4/2006, AFTER DEPARTING, APPROXIMATELY 30 MINUTES INTO THE FIRST LEG OF THE DAYS TRIP, THE PILOT REPORTED GETTING A RT ENGINE FIRE INDICATION. FOLLOWING PROCEDURE, THE PILOT PULLED THE T-HANDLE AND BLEW THE FIRE BOTTLE, SHUTTING DOWN THE ENGINE. THE PILOT DIVERTED TO AIRPORT AND LANDED SAFELY. THE PILOT STATED THAT HE HAD NOT NOTICED ANY UNUSUAL READINGS FROM ANY OF THE GAUGES. A MAINTENANCE CREW WAS SENT TO INVESTIGATE AND FOUND THAT THERE WERE APPROXIMATELY 3 QUARTS OF OIL LEFT IN THE ENGINE. IT WAS DECIDED TO PULL THE ENGINE AND SEND IT FOR TESTING. IT WAS ASSUMED THAT AN OIL SEAL HAD MALFUNCTIONED AND THE SUBSEQUENT OIL LOSS CAUSED THE ENGINE TO OVERHEAT AND ACTIVATE THE ENGINE FIRE DETECTION LO

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