Service difficulty report · Wire Harness · Beech 100BEECH

Difficulty date
February 20, 2007
Submitted
May 1, 2007
Operation
General aviation
Make and model
Beech 100BEECH
Aircraft time
11,289 hours
Engine
Garrtt TPE3316252B
Propeller
Hartzl HCB4TN5
Part
Wire Harness
Part number
8975294
Condition
Failed
Location
Engine Itt
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
E

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

What was found

(CAN) FLIGHT CREW DID ATTEMPTED AN ENGINE START NR 2 ENGINE WITH NO SUCCESS. AFTER MAINTENANCE HAD CORRECTED THE PROBLEM ASSOCIATED WITH THE FAILED START, THE CREW PROCEEDED TO CARRY OUT ANOTHER ENGINE START. ONCE THE ENGINE LIT OFF THE CREW NOTED THAT THE ITT WAS CLIMBING RAPIDLY TOWARDS THE RED BUT THEN WOULD DROP AND RISE AGAIN. THEY DECIDED TO CONTINUE WITH THE START. ONCE THE ENGINE HAD SETTLED AT IDLE, THE ITT BEGAN TO FLUCTUATE AND SLOWLY CLIMB TO THE REDLINE. THE CREW DECIDED AT THIS TIME TO SHUTDOWN THE ENGINE. MAINTENANCE TROUBLESHOT THE SYSTEM AND FOUND THAT THE ITT HARNESS WAS U/S. DUE TO THE FACT THAT THEY COULD NOT SPECIFICALLY STATE THAT THE PROBLEM WAS THE HARNESS AND NOT THAT THE HARNESS AND T