What was found
REF T/C 78233001: EMERGENCY LIGHT BATTERY PACK M1673 FAILS CAPACITY CHECK. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK AT EMERGENCY LIGHT POWER SUPPLY M1673 PER AMM 33-51-06. POWER SUPPLY OP CHECKS GOOD.
- Difficulty date
- June 23, 2025
- Submitted
- June 25, 2025
- Operation
- Air carrier
- Aircraft
- N267AK
- Make and model
- Boeing 737990ER
- Aircraft serial
- 60581
- Aircraft time
- 29,748 hours, 9,562 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Condition
- No Test
- 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.