What was found
POWER SUPPLY, BATTERY PACK CAPACITY CHECK PROCEDURE. ALL LIGHTS ASSOCIATED WITH POWER SUPPLY M33094 EXTINGUISH AFTER APPROXIMATELY 3 MINUTES. REPLACED THE BATTERY PACK IAW AMM. 33-51-06-960-802, OP CHKD OK.
- Difficulty date
- September 26, 2026
- Submitted
- September 28, 2026
- Operation
- Air carrier
- Aircraft
- N773UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26929
- Aircraft time
- 111,642 hours, 21,342 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- No Test
- 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.