As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT RTB DUE TO LT ENG ROLLED BACK APPROX 15 TO 20 SECONDS AFTER INITIAL START WITH STATUS MSG SPAR VLV. GAINED ACCESS TO LT ENG SPAR VLV. MANUALLY CYCLED VLV CONFIRMED FREE MOVEMENT. REF SCHEM/IPC SWAPPED SPAR VLV DISAGREE RELAY WITH APU RELAY. PERF ENG RUN OPS/IND NML AND APU OPS/IND NML NO HISTORY. OK FOR SVC. ETOPS CATEGORY 'D': INABILITY TO CTRL ENG OR GET DESIRED PWR.