As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXTERIOR EMERGENCY LIGHT NEXT TO AIR STAIR DOOR REMAINS ON AFTER EMER LIGHT SWITCH IS OFF AND AIRCRAFT IS POWERED DOWN WITH BATTERIES DISCONNECTED. REMOVED AND REPLACED FWD EMERGENCY BATTERY PACK REF CHALLENGER 350 AMM TASK 33-51-17-000-801 OPERATIONAL TEST GOOD. P/N OFF: 2013-1A P/N ON: 2013-1A S/N OFF: 514605 S/N ON: 499244