What was found
AFTER PUSHBACK LEFT ENGINE WILL NOT START. MANUALLY OPENED START VLV AND HAD ROTATION. REPLACED NR 1 ENGINE START VALVE PER AMM. STARTED NR 1 ENGINE, VALVE OPERATES NORMALLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER PUSHBACK LEFT ENGINE WILL NOT START. MANUALLY OPENED START VLV AND HAD ROTATION. REPLACED NR 1 ENGINE START VALVE PER AMM. STARTED NR 1 ENGINE, VALVE OPERATES NORMALLY.