- Difficulty date
- December 12, 2025
- Submitted
- December 15, 2025
- Operation
- Air carrier
- Make and model
- Boeing 7379
- Aircraft serial
- 64501
- Aircraft time
- 16,351 hours, 5,399 cycles
- Part
- Battery Pack
- Part number
- D71701100
- Condition
- Failed
- 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.
What was found
PASSENGER COMPARTMENT EMERGENCY LIGHT BATTERY PACK M1670 FAIL. REMOVED POWER SUPPLY BATTERY PACK M1670 IAW B737 AMM 33-51-06-96 0-802 STEP 4-D-(5) AND REPLACED BATTERY PACK M1670, OP TEST GOOD IAW B737 AMM 33-51-06-960-802 STEPS 4-D-(6) AND 4-D-(7).