What was found
AIRCRAFT IN BASE MAINTENANCE: **DR 1L EMER BATTERY PACK (M33093) POWER LOW & WONT CHARGE UP**. MAINTENANCE REPLACED DR 1L EMER BATTERY PACK (M33093) AND TEST NORMAL IAW AMM 33-51-06 REV246.
- Difficulty date
- June 12, 2025
- Submitted
- June 16, 2025
- Operation
- Air carrier
- Aircraft
- N734AR
- Make and model
- Boeing 777323ER
- Aircraft serial
- 31480
- Aircraft time
- 39,912 hours, 4,566 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- Inoperative
- 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.