As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - LEFT AIR OFF LIGHT ILLUMINATED DURING TAKEOFF ROLL. TAKEOFF ABORTED WITHOUT INCIDENT. DEFERRED LT FLOW CONTROL VALVE PER MEL 21-2. AIRCRAFT RETURNED TO SERVICE. FAT MAINTENANCE SUBSEQUENTLY CLEARED DEFERRED ITEM WITH THE REPLACEMENT OF THE CANNON PLUG ON THE LEFT ENGINE 4 PSI SWITCH, P/N 1103P0648. SYSTEM OPERATIONAL CHECK NORMAL. (M)