What was found
NR 1 ENGINE, A LOOP WILL NOT TEST. ACFT GROUNDED. MOVED NR 1 ENGINE FIRE SWITCH TO NORMAL. VERIFIED LOOP "A" FAILS UPPER FAN DETECTOR. REPLACED UPPER FAN DETECTOR ASSY REF AMM 26-11-01/401.
- Difficulty date
- December 16, 2015
- Submitted
- December 22, 2015
- Operation
- Air carrier
- Aircraft
- N512AS
- Make and model
- Boeing 737890
- Aircraft serial
- 39043
- Aircraft time
- 28,335 hours, 8,634 cycles
- System (JASC)
- 2612 · Fire Detection
- Part
- Fire Loop
- Condition
- No Test
- Location
- Nr 1 Nacelle
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.