What was found
INTERIOR OVERWING EXIT SIGNS ABOVE DOORS WILL NOT ILLUMINATE ; / [01] R&R?D BATTERY CHARGER AT STATION 565 RBL 68; NO FIX. REFERENCE AMM 33-51-06. TROUBLE SHOT DOWN TO BATTERY PACKS AT STA 565 RBL 68 AND STA 565 LBL 68. BOTH BATTERY PACKS ON EACH SIDE OF OVERWING EXITS ARE DEAD; CONFIRMED WITH A SLAVED IN BATTERY PACK FROM ANOTHER STATION. RESECURED SLAVED IN BATTERY PACK TO ORIGINAL POSITION.; [02] REPLACED BATTERY PACKS AT STA 565 RBL 68 AND LBL 68. OPS CHECK GOOD. REFERENCE AMM 33-51-06