What was found
DURING HEAVY MAINTENANCE, EMERGENCY LIGHT BATTERY 10WL FAILS TEST FOR BATTERY. REMOVED AND REPLACED BATTERY PACK, OPS CHECKED GOOD IAW AMM 33-51-38-000-001A.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE, EMERGENCY LIGHT BATTERY 10WL FAILS TEST FOR BATTERY. REMOVED AND REPLACED BATTERY PACK, OPS CHECKED GOOD IAW AMM 33-51-38-000-001A.