What was found
FLT#714, FLL-HPN.' WITH NO POWER ON AIRCRAFT GPU AND APU OFF, AND EMER LIGHT SWITCH IN THE ON OR AM POSITION, CABIN EMER. LIGHTS DOES NOT COME ON; REMOVED AND REPLACED 10WL EPSU AND BATT PACK IAW AMM 33-51-38 REF LP 4245975-2 (REMOVED AND REPLACED 11WL EPSU & BATT PACK IAW AMM 33-51-58. ALL CHECKS NORMAL OK FOR CONT SVC.), 4245976 1 (REMOVED AND REPLACED 12WL EPSU AND BATTERY PACK IAW AMM 33-51-38 ALL CHECKS NORMAL OK FOR CONT SVC) & 2 (REMOVED AND REPLACED 13WL EPSU AND BATTERY PACK IAW AMM 33-51-38. ALL CHECKS NORMAL OK FOR CONT SVC) FOR REMOVAL AND REPLACEMENT OF 11WL, 12WL & 13WL. ALL CHECKS GOOD PER 33-51-38, EMERGENCY LIGHTS OPERATE NORMALLY W/O A/C PWR AND WITH PWR OK FOR CONT SVC,'