Service difficulty report · Fire Detector · Doug MD11F

Difficulty date
October 8, 2024
Submitted
October 9, 2024
Operation
Air carrier
Aircraft
N253UP
Make and model
Doug MD11F
Aircraft serial
48439
Aircraft time
80,614 hours, 18,733 cycles
Part
Fire Detector
Condition
Intermittent
Location
Nr 3 Engine
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

REPEAT YET NOT AS BAD, (2) ENG 3 FIRE INTERMITTANT BACK TO BACK ON FINAL APPROCH PREVIOUS PAGE T/S ENGINE LOOP B W/REF TO MD11-2610-6125. FOUND LOOP PART NUMBER 420581-0000 INTERMITTENTLY SHORTING AT DH 22. CHANGED LOOP HARNESS ALONG WITH LOOP SUGGESTED BY TECH P/N 420812-0000 W/REF TO AMM 71-50-04-01-401. CFDS SHOWS NO CURRENT FAULTS. FDCU #3 RTS PASSED REF AMM 26-11-02-501

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