What was found
REF WC 29-3350-1-7100 & L/P 4345950 INT EMERGENCY O/H BIN LIGHT AT ROWS 2-3 DEF AND 8, 11, 14 DEF AND 21 ,23, 25, 28 DEF FAILED TO STAY ON FOR A MINIMUM OF 15 MINS. REPLACED BATTERY PACKS M1674, M1676, M1671 AND BATTERY CHARGER FOR BATTERY PACK M1671 REF AMM 33-51-06-960-805 AND 33-51-06-960- 806. OK FOR SERVICE.