What was found
EMERGENCY LIGHTS - OPERATIONAL TEST WITH THE CONTROL SWITCHES PROCEDURE, PACK BATTERY INOP, POS M32401, M33401. BATTERY PACKS REPLACED ON POS M32401 AND 33401. IAW AMM 33-51-06-960-802. FUNTIONAL TEST PASSED.
- Difficulty date
- April 29, 2026
- Submitted
- April 30, 2026
- Operation
- Air carrier
- Aircraft
- N78002
- Make and model
- Boeing 777224
- Aircraft serial
- 27578
- Aircraft time
- 124,122 hours, 13,017 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- Faulted
- 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.