As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: BULL NOSE EMERGENCY LIGHT AT SEAT ROW 1AC AND 3AC INOPERATIVE. REPLACED EMERGENCY POWER SUPPLY UNIT M731 PER AMM 33-51-07-022-020/862-054 AND PERFORMED SATISAFACTORY OPERATIONAL CHECK PER 33-51-07-862-054.