Service difficulty report · Battery Pack · Boeing 7378H4
FAA SDR system
- Difficulty date
- October 18, 2025
- Submitted
- October 21, 2025
- Operation
- Air carrier
- Make and model
- Boeing 7378H4
- Aircraft serial
- 36952
- Aircraft time
- 24,569 hours, 12,744 cycles
- Part
- Battery Pack
- 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.
What was found
FO SIDE OUTER EMERGENCY LIGHT BULB INOP<[01] RE LAMPED F.O. SIDE MOST FORWARD EMERGENCY LIGHT BULB IAW AMM 33-51-04, NO HELP. TROUBLESHOOT PER SCHEMATIC MANUAL 33-51-12. FOUND EMERGENCY EXIT LIGHT BATTERY PACK INOPERATIVE. REMOVED AND REPLACED MOST FORWARD BATTERY PACK M2816 IAW AMM 31-51-06. OPS CHECK GOOD.