What was found
DURING FLIGHT, CREW INDICATED FIRE MAIN DECK AFT EICAS MESSAGE. CREW RETURNED TO ANC FOLLOWING EVENT.(<P>REPLACED THE MAIN DECK ZONE 12 LOOP A DETECTOR IAW AMM 26-14-01. OPS CHECK GOOD. TEST PASSED MESSAGE CLEARED.
- Difficulty date
- March 30, 2025
- Submitted
- April 2, 2025
- Operation
- Air carrier
- Aircraft
- N438GT
- Make and model
- Boeing 747409F
- Aircraft serial
- 30766
- Aircraft time
- 91,541 hours, 16,878 cycles
- System (JASC)
- 2612 · Fire Detection
- Part
- Fire Detector
- Part number
- 2156756A
- Part serial
- 21730B
- Condition
- False Activation
- Location
- Zone 200
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.