What was found
DURING L/O, CHK TEST EMERG LT AFT TRACK AND OVHD LT FAILED. REPLACED BATTERY PACK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING L/O, CHK TEST EMERG LT AFT TRACK AND OVHD LT FAILED. REPLACED BATTERY PACK.