What was found
BATTERY PACK M1673 AFT LEFT FAILS DEEP CYCLE TEST. REMOVED AND REPLACED DEFECTIVE BATTERY PACK AND PERFORMED GOOD TEST OF M1673 AFT LEFT POWER SUPPLY PER MM 33 51 06 960 806.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BATTERY PACK M1673 AFT LEFT FAILS DEEP CYCLE TEST. REMOVED AND REPLACED DEFECTIVE BATTERY PACK AND PERFORMED GOOD TEST OF M1673 AFT LEFT POWER SUPPLY PER MM 33 51 06 960 806.