As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY BATTERY PACK M1673 AT STA 952 WILL NOT HOLD CHARGE. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK M1673 AT STA 952 IN ACCORDANCE WITH AMM 33-51-06-960-805. OPS CHECK OF BATTERY PACK GOOD IN ACCORDANCE WITH AMM 33-51-06-960- 805.