What was found
AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT AT DOOR 4R AREA DOES NOT COME ON DURING TEST. REMOVED AND REPLACED BATTERY PACK AT POWER SUPPLY M33409, PER AMM 33-51-06.
- Difficulty date
- October 30, 2020
- Submitted
- November 2, 2020
- Operation
- Air carrier
- Aircraft
- N771AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29579
- Aircraft time
- 85,579 hours, 10,980 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Condition
- Inoperative
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.