As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FERRY FLIGHT ON 1/6/02 AND ON ETOPS VERIFICATION FLIGHT ON 1/5/02 RETURNED TO FIELD DUE TO RIGHT ENGINE CONTROL EICAS MSG: EEC CHANEL B LOST POWER FAULT. SUPPLEMENTAL DATA UPDATE: EEC POWER SUPPLY FAULT. REPLACED PERMANENT MAGNET ALTERNATOR AND ELECTRONIC ENGINE CONTROL (EEC) EEC WILL BE SENT TO HAMILTON SUNDSTRAND FOR OVERHAUL.