What was found
DURING A-CHECK THE AFT LEFT EMERGENCY POWER SUPPLY UNIT TEST FAILED. REPLACED EPSU 31-3350-9-0001 S/N 07714 AND BATTERY PACK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING A-CHECK THE AFT LEFT EMERGENCY POWER SUPPLY UNIT TEST FAILED. REPLACED EPSU 31-3350-9-0001 S/N 07714 AND BATTERY PACK.