What was found
DURING C4 C-CHECK, INSP NOTED THE AFT EMERGENCY POWER SUPPLY UNIT FAILED. MX REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY UNIT AND PERFORMED OPS TEST IAW AMM 33-51-38-000-001 AND 33-51-38-400-001.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C4 C-CHECK, INSP NOTED THE AFT EMERGENCY POWER SUPPLY UNIT FAILED. MX REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY UNIT AND PERFORMED OPS TEST IAW AMM 33-51-38-000-001 AND 33-51-38-400-001.