As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG 1 LOSS OF OIL PRESS IND DURING TAKEOFF ROLL (LOW SPEED REJECT ABOUT 40 KTS). THERE WAS NO EICAS "E1 OIL LOW PRESS" MESSAGE. OIL PSI WENT TO MOSTLY 6 PSI.-C/A-RAR OIL TEMPERATURE/PRESSURE SENSOR TRANSDUCER IAW AMM 79-31-01. PERFORMED OPERATIONAL CHECK. DID NOT FIX PROBLEM. REFERENCE AML PAGE 4761644 ITEM 2 FOR DISCREPANCY.