As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, EMERGENCY LIGHTS FLICKERING ON AND OFF IN ARM POSITION. TROUBLESHOT SYSTEM. FOUND NR 1 EMERGENCY BATTERY FAULTY. REMOVED AND REPLACED NR 1 AND NR 2 EMERGENCY BATTERY IAW AMM 33-52-01 AND 33-52-11. NR 1 P/N OFF: 6450LS-00 S/N OFF: 001098 P/N ON: 640-13560-00 S/N ON: 001700 NR 2 P/N OFF: 6450LS-00 S/N OFF: 002189 P/N ON: 640-13560-00 S/N ON: 001931.