What was found
DURING HEAVY MAINTENANCE, OVERHEAD EMEGENCY EXIT SIGN CENTER AISLE AT ROW 18 INOPERABLE, REF FLIGHTSTAR WO N503JB-01-01 N/R 00027. R & R LIGHT BULBS ON OVERHEAD EMERGENCY EXIT SIGN CENTER AISLE ROW 18 WITH SATISFACTORY OPERATIONS CHECK, IAW A320 AMM 33-51-11.