What was found
#1 ENG FIRE HANDLE AND ENG 1 OVERHEAT DO NOT ILLUMINATE DURING OVHT/FIRE TEST. GROUNDED - YES. REMOVED AND REPLACED #1 ENG LEFT CORE FIRE DETECTOR ASSEMBLY M1759 REF B737-900 AMM 26-11-01.
- Difficulty date
- June 11, 2023
- Submitted
- June 15, 2023
- Operation
- Air carrier
- Aircraft
- N467AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 33,283 hours, 10,620 cycles
- System (JASC)
- 2612 · Fire Detection
- Part
- Fire Detector
- Part number
- 902862
- Condition
- Failed
- Location
- #1 Engine
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.