As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, FO REPORTED NR 1 ENGINE OIL PRESSURE ROSE INTO YELLOW. GROUND RAN AIRCRAFT PERFORMED PROPER ENGINE WARM UP PROCEDURE. SYSTEM PRESSURE AND TEMP STABILIZED AS REQUIRED IN ACCEPTABLE RANGE. ALL SYSTEMS OPS NORMAL AT THIS TIME OKAY FOR SERVICE.