As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2167, ON TAXI IT WAS NOTED 100C DIFFERENCE ITT ALL OTHER ENGINE INSTRUMENTS ABOUT THE SAME. WITH NR 1 BLEED OFF NO CHANGE IN ITT. WITH NR 2 BLEED OFF ITT CHANGED SIGNIFICANTLY. MAINTENANCE REPLACED NR 1 HPSOV, NORMAL ITT CHANGED NOTED WITH APPLIED BLEED LOAD. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.