As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER RAISING START LEVER TO IDLE ON ENGINE START (#2) ENGINE HUNG UP AT APPROX 47% N2 EGT APPROX 574 DEG. GROUNDED - YES. AIRCREW RAN ENGINE @ GATE AND ALL PARAMETERS NORMAL. INTERROGATED FMC FOR ENGINE #2 FAULTS + NO FAULTS NOTED. NO HISTORY. OK FOR CONTINUED SERVICE.