As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6243 - IAD-PHF - ABORTED TAKEOFF DUE TO RT AIR OFF WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 55845, MEL 21-1. MAINTENANCE CLOSED DMI 55845 ON 8-5-07 BY REMOVING AND REPLACING PRESSURE SWITCH, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)