What was found
PRIOR TO DESCENT MAIN DECK FIRE WARNING EICAS MSG DISPLAYED. SYS WAS CURRENTLY DEFERRED. FIRE WARNING DISAPPEARED AT 10000' FOOT ON DESCENT. AFTER FLIGHT FOUND FAULTY RELAY R 5187. REPLACED RELAY SYS, CHECKED GOOD.
- Difficulty date
- June 10, 2014
- Submitted
- June 13, 2014
- Operation
- Air carrier
- Aircraft
- N919CA
- Make and model
- Boeing 747428
- Aircraft serial
- 25302
- Aircraft time
- 83,352 hours, 11,875 cycles
- Engine
- Ge CF680C2B1F
- System (JASC)
- 2612 · Fire Detection
- Part
- Relay
- Condition
- Defective
- Location
- Fire Warning
- Stage of operation
- DE
- 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.