What was found
R4 DOOR EMER LIGHT POWER SUPPLY M33408 TEST FAILED. EMER LT PWR SUPPLY BATTERY REPLACED AND TESTED NORMAL IAW AMM33-51-06.
- Difficulty date
- October 15, 2026
- Submitted
- October 16, 2026
- Operation
- Air carrier
- Aircraft
- N222UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30553
- Aircraft time
- 93,136 hours, 12,505 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- ADD7170H00
- 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.