What was found
UNUSUAL ODOR IN COCKPIT NOTICED JUST PRIOR TO PUSH BACK . FOUND APU BATTERY AT ZERO VOLTS AND OVERHEATED. REPLACED APU BATTERY AND APU BATTERY CHARGER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UNUSUAL ODOR IN COCKPIT NOTICED JUST PRIOR TO PUSH BACK . FOUND APU BATTERY AT ZERO VOLTS AND OVERHEATED. REPLACED APU BATTERY AND APU BATTERY CHARGER.