As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR 2 ENGINE NOT STARTING. START VALVE DOES NOT OPEN WITH APU AIR AT 43PSI OR WITH CROSSBLEED START AT 48PSI. MAINTENANCE TRIED TO DO A MANUAL START IN ORDER TO DEFER THE VALVE, BUT VALVE WAS OUT OF ALIGNMENT. OPENED COWLS TO REALIGN VALVE FOR MANUAL START, FOUND STARTER ITSELF HAD FAILED, SHAFT SHEARED, CAUSING THE MISALIGNMENT. NR 2 ENGINE STARTER REPLACED IAW MM 80-11-01.