What was found
INTERIOR EMERGENCY O/H BIN LIGHTS AT ROWS 2-3DEF AND 8, 11, 14DEF AND 21, 23, 25, 28DEF FAILED TO STAY ON FOR A MINIMUM OF 15 MINUTES. REMOVED AND REPLACED 3EA. EMER LIGHT BATTERY PACKS AS PER AMM 33-51-06-960-805. NOW ALL LIGHTS FOR ALL LOCATIONS TEST NORMAL. OK FOR SERVICE.