As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, THE CREW RECEIVED A LEFT HAND PACK FAIL MESSAGE AND ABORTED TAKEOFF. FLIGHT 4147 THEN RETURNED TO THE GATE WHERE MAINTENANCE MEL'D THE LEFT HAND HIGH PRESSURE BLEED VALVE. FLIGHT 4147 THEN LEFT WITH NO FURTHER INCIDENTS.