As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE START VALVE WOULD NOT CLOSE AFTER RIGHT ENGINE START. ATTEMPTED TO COMPLY WITH MEL CARD 8000B (ENG START VALVE LIGHT) BUT WE COULD NOT CONFIRM START VALVE IS CLOSING. REPLACED RIGHT ENGINE START VALVE PER MM, OPS NORMAL. MAX MOTOR AND START VALVE POSITION INDICATION NORMAL.