What was found
WHILE STARTING APU, NOTICED NOISE AND SMOKE EMITTING FROM BATTERY CHARGER. REPLACED BATTERY CHARGER IAW DC9 MM 24-30-02-2-0001. ALSO, REPLACED BOTH AIRCRAFT BATTERIES AND BATTERY TEMPERATURE SENSOR IAW DC9 MM 24-30-01-0-0001.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE STARTING APU, NOTICED NOISE AND SMOKE EMITTING FROM BATTERY CHARGER. REPLACED BATTERY CHARGER IAW DC9 MM 24-30-02-2-0001. ALSO, REPLACED BOTH AIRCRAFT BATTERIES AND BATTERY TEMPERATURE SENSOR IAW DC9 MM 24-30-01-0-0001.