As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FLT 4219 - DURING TAKEOFF, THE CREW NOTED THE LEFT ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED SYSTEM AND WAS UNABLE TO DUPLICATE THE PROBLEM. AIRCRAFT RETURNED TO SERVICE. (M)