What was found
NR 4 ENGINE WAS SHUTDOWN IN FLIGHT DUE TO FIRE WARNING INDICATION. DISCHARGED BOTH FIRE BOTTLES. UPPER FORWARD B-LOOP WIRE FOUND CHAFING AGAINST ENGINE CAUSING FALSE FIRE INDICATION. WIRE REPAIRED.
- Difficulty date
- April 18, 1995
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N153UA
- Make and model
- Boeing 747123
- Aircraft serial
- 20102
- Engine
- Pwa JT9D7A
- System (JASC)
- 2612 · Fire Detection
- Part
- Fire Loop
- Condition
- Out Of Position
- Location
- Nr 4 Engine
- Stage of operation
- CR
- Nature of condition
- J
- Precautionary procedure
- F, E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.