What was found
AIRCRAFT WAS IN BASE MAINTENANCE: EMERGENCY LIGHTS POWER SUPPLY M33407 FAILED CAPACITY CHECK DURING FUNCTIONAL CHECK PER WORK CARD 72C20033009. REMOVED AND REPLACED BATTERY PACK M33407 IAW AMM 33-51-06.
- Difficulty date
- April 16, 2023
- Submitted
- April 18, 2023
- Operation
- Air carrier
- Aircraft
- N735AT
- Make and model
- Boeing 777323ER
- Aircraft serial
- 32439
- Aircraft time
- 29,726 hours, 3,446 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Condition
- No Test
- Location
- Zone 200 - Fuse
- 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.