As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY EXIT SIGN ABOVE DOOR OF MAIN DECK CREW REST IS INOPERATIVE DURING LIGHT TEST. REPLACED EMERGENCY LIGHT POWER SUPPLY M33400 BATTERY BACK PER AMM 33-51-06. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.