As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE ROLLBACK ON TAKEOFF. PRIMARY ENGINE CONTROL MESSAGE P-EEC, P275-16. REPLACED EEC. CHECKED SENSE LINES, FOUND SECURE. ANOTHER WRITE UP OCCURRED AFTER THE EEC WAS REPLACED FOR ENGINE ROLL BACK AT START. THE LOWER PB WATER TRAP VENT HOLE WAS FOUND CLOGGED. ENGINE OPERATION HAS BEEN NORMAL SINCE THEN. THE PROBLEM LIKELY OCCURRED DUE TO A COMBINATION OF THE EEC PB TRANSDUCER AND THE CLOGGED LINE.