What was found
AFT CARGO FIRE TEST IN "NORMAL" WILL NOT TEST AND SHOWS "DETECTOR FAULT" "DET SELECT B." APPEARS INOP SYSTEM TESTS NOORMAL IN "DET SELECT A" POSITION. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- December 21, 2022
- Submitted
- December 27, 2022
- Operation
- Air carrier
- Aircraft
- N486AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44107
- Aircraft time
- 26,888 hours, 8,464 cycles
- System (JASC)
- 2612 · Fire Detection
- Part
- Fire Detector
- Condition
- No Test
- Location
- Aft Cargo
- 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.