As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L HPSOV CAUTION ON TAKEOFF ROLL. ABORTED T/O AT 10KTS. REPEAT GRIPE FWD TO MCO AND PLACARD PER MEL 36-11-02. VALVE LOCKED IN CLOSED POSITION. BITE OF AIR SUPPLY MODULE SHOWS L HPC. TESTED SYS AND REPLACED LT HPC PER M/M VERIFY BLEED SHIFT AT ENG RUN. RAN ENG BLEED SHIFT CHECKED GOOD SHIFT AROUND 54-55 PERCENT N1 MCO AND PLACARD REMOVED.