What was found
L4 DOOR EMERGENCY POWER SUPPLY M33407 BATTERY PACK CAPACITY CHECK FAILED. THE POWER SUPPLY AND BATTERY PACK WERE REPLACED, TESTED NORMAL IAW AMM 33-51-06.
- Difficulty date
- May 21, 2018
- Submitted
- June 5, 2018
- Operation
- Air carrier
- Aircraft
- N77019
- Make and model
- Boeing 777224
- Aircraft serial
- 35547
- Aircraft time
- 58,607 hours, 5,222 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Part serial
- 215812
- Condition
- No Test
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K, C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.