As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ENGINE START, ENG NR 1 START VALVE OPENED NORMALLY BUT NO ROTATION. ACFT GROUNDED. FOUND NR 1 ENG STARTER WOULD NOT TURN W/START VALVE OPEN, REF 80-11-01-00-801. REPLACED NR 1 ENG STARTER IAW AMM 80-11-01-000-801-F00 & 80-11-01-400-801-F00. OPS & LEAK CHECKED GOOD.