What was found
DURING A MAINTENANCE LINE CHECK, THE OVERWING EMERGENCY EXIT SIGNS WOULD ILLUMINATE FOR ONLY 20 SECONDS. REMOVED AND REPLACED BATTERY PACK FOR THE LEFT OVERWING EXIT SIGNS. OPERATIONALLY CHECKED NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING A MAINTENANCE LINE CHECK, THE OVERWING EMERGENCY EXIT SIGNS WOULD ILLUMINATE FOR ONLY 20 SECONDS. REMOVED AND REPLACED BATTERY PACK FOR THE LEFT OVERWING EXIT SIGNS. OPERATIONALLY CHECKED NORMAL.