As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND L4 DOOR OVRD EMERGENCY LIGHT (M7921) FUNCTION FAIL. REPLACED L DR4 OVRD EMERGENCY LIGHT (M7921) POWER SUPPLY BATTERY IAW AMM 33-51-04-902-001-001 REV 116. 2. PERFORMED POWER SUPPLY BATTERY INSTALLATION TEST IAW AMM 33-51-04-902-001-001 REV 116. THE RESULT WAS SATISFACTORY.