What was found
WHILE WORKING T/C 78233001, M1673 FAILED TEST. GROUNDED - YES. REPLACED BATTERY PACK M1673 REF AMM 33-51-06-960-805. OPS CHECK GOOD.
- Difficulty date
- September 23, 2026
- Submitted
- September 24, 2026
- Operation
- Air carrier
- Aircraft
- N448AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36356
- Aircraft time
- 37,429 hours, 11,592 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Condition
- Inoperative
- Location
- Zone 200
- 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.