What was found
WHEN APU BUSS TO GROUND BUSS WAS TURNED OFF THE BACK HALF OF FLOOR TRACK LIGHT CAME ON. MTC REMOVED AND REPLACED AFT FLOOR TRACK BATTERY PACK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN APU BUSS TO GROUND BUSS WAS TURNED OFF THE BACK HALF OF FLOOR TRACK LIGHT CAME ON. MTC REMOVED AND REPLACED AFT FLOOR TRACK BATTERY PACK.