What was found
EMER LIGHTS OFF AMBER CAS: ON PREFLIGHT SEAT 3 FLOOR AND OVERHEAD EMERGENCY LIGHTS INOP WITH ON AND ARMED POSITION AS WELL AS RIGHT WING ICE LIGHT. LIGHTS ALL WORKED UNDER SHIPS BATTERY POWER. // SIGNOFF// REMOVED INOP SLIGHTING BATTERY PACK AND INSTALLED REPAIRED BATTERY', PACK. PERFORMED OPS CHECK. OPS CHECK GOOD. NO EMER LIGHTS OFF AMBER CAS WHEN E-LIGHT SWITCH IS PLACED ON AND IN ARM POSITION, ALL DONE IAW CE-680A AMM 33-50-00 & 33-50-06, CE-680 IMM 25-20-21. NO DEFECTS NOTED. PN OFF/ON: CBS28-1, SN OFF: 008723, SN ON: 1621M