What was found
EXIT WALL IDENTIFIER LIGHT ASSEMBLY FOR EMER EVAC INOPERATIVE. L2 DOOR & AFT EXT DOOR, STAIRWAY, ACCESS FOR THE POWER SUPPLY IS BLOCKED BY THE OVERHEAD BIN, ROW 35. POWER SUPPLY IS AT STATION 1233, REF LOG PAGE 601721, OVERHEAD BINS DROPPED. FOUND GND STUD NR 5259 AT STATION 1231R, READING 6 MEGA OHMS TO GND FROM TERMINAL 3 OF THE BATTERY PACK B5-209 IAW 20-00-09, CLEANED & SECURED GND LUG, BATTERY PACK & ASSOCIATED EXIT SIGNS. OPERATIONS CHECKED GOOD IAW AMM 33-53-00, REPLACED BATTERIES IN POWER SUPPLY PRECAUTIONARY IAW AMM 33-53-00.