What was found
AIRCRAFT WAS GROUNDED: EMERG LTSD TEST FAIL MSF EPSU INT LOAD AFT L. REMOVED AND REPLACED POWER SUPPLY UNIT AT AFT POSITION 13WL IAW AMM 33-51-38 ALL OPS CHECKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: EMERG LTSD TEST FAIL MSF EPSU INT LOAD AFT L. REMOVED AND REPLACED POWER SUPPLY UNIT AT AFT POSITION 13WL IAW AMM 33-51-38 ALL OPS CHECKS OK.