As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STARTING ENG NR 1 PLACING ENG START SWITCH TO GRD ENG NR 1 WOULD NOT START. NO N2 ROTATION, NO START VALVE OPEN LIGHT OBSERVED, ALL C/B NOTED IN THE "IN" POSITION. GROUNDED - YES. EXERCISED NR 1 START VALVE AS REQUIRED. PERFORMED DRY MOTOR OF NR 1 ENGINE. NO DEFECTS NOTED. STARTER OPERATES NORMALLY. AIRCRAFT OK FOR SERVICE.