As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING OPS CHECK OF EMERGENCY LIGHT BATTERY PACKS, C/B Z37 EMERGENCY LIGHT CHARGING AND A14 EMERGENCY LIGHTS ARM AND CHARGE POPPED. REMOVED AND REPLACED BATTERY RECHARGEABLE POWER SUPPLY AND BATTERY AFT CARGO PER AMM 33-51-03 AND IPC 33-51-00. OPS TEST GOOD. INSTALL ALL ACCESS COVERS. OK FOR SERVICE.