What was found
FORWARD LEFT HAND OVERWING UPPER AND LOWER EXIT SIGNS FAIL OPERATIONAL CHECK<[01] REMOVED AND REPLACED BATTERY AND BATTERY CHARGER AT M1694 IAW SWA B737-800 AMM 33-51-06. PERFORMED A GOOD OPERATIONAL TEST OF THE FORWARD LEFT HAND OVERWING UPPER AND LOWER EXIT SIGNS IAW SWA B737-800 AMM 33-51-00.;[02] VERIFIED REMOVED AND REPLACED BATTERY AND BATTERY CHARGER AT M1694 IAW SWA B737-800 AMM 33-51-06. PERFORMED A GOOD OPERATIONAL TEST OF THE FORWARD LEFT HAND OVERWING UPPER AND LOWER EXIT SIGNS IAW SWA B737-800 AMM 33-51-00.