What was found
ORD - DURING OVERNIGHT MAINTENANCE, TAILCONE ACCESS WALKWAY EMEREGNCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - DURING OVERNIGHT MAINTENANCE, TAILCONE ACCESS WALKWAY EMEREGNCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)