As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: IN FLIGHT, WITH EMER LIGHT IN THE ARM POSITION, EMER LIGHTS WERE FLASHING CONTINUOUSLY. RESOLUTION: REMOVED CABIN EMER BATTERY PN: 74SOLS-00 SN: 006242. INSTALLED REPAIRED CUSTOMER SUPPLIED EMER BATTERY PN: 74S0LS-00 SN: 00S763. OPERATIONAL CHECK GOOD AT THIS TIME. WORK PERFORMED IN REF TO PHENOM 300 AMM TASK 33-S2-01