SDR IPXA2015090693179

Service difficulty report · Control Unit · Doug MD11F

Difficulty date: September 6, 2015
Submitted: September 8, 2015
Operation: Air carrier
Aircraft: N258UP
Make and model: Doug MD11F
Aircraft serial: 48416
Aircraft time: 72,035 hours, 13,871 cycles
System (JASC): 2610 · Detection System
Part: Control Unit
Part number: 80380303
Part serial: 932
Condition: Intermittent
Location: Fire Detection
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

DURING CLIMBOUT, RECEIVED LEVEL 1 MESSAGE "FIRE DET 1 FAIL". R & R WITH NEW FDCU, ELEMENT RESPONDER, HARNESS WIRE ASSY AND THEN ON GROUND NR 1 ENGINE FDCU BITE TEST PASSED IAW AMM 26-11-03/401, 26-11-02/401, 71-50-04/401 AND 26-11-02/501.

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