As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST AFTER LEVEL OFF, AT CRUISE, RECEIVED A ZERO OIL PRESSURE INDICATION ON THE NR 1 ENGINE. RETURNED TO DEN, ALL OTHER ENGINE INDICATIONS WERE NORMAL EEC 1 FAULT CODE 79-11091 PRESENT ON FLIGHT LEG 0 & 1. REMOVED AND REPLACED J7 AND J8 FAN WIRING HARNESS` IAW AMM 73-21-06. R & R THE NR 1 ENG OIL PRESSURE SENSOR IAW MM 79-32-01. THROUGH PARA H. COMPLETED THE INSTALLATION OF THE NR 1 ENG OIL PRESSURE SENSOR IAW AMM 79-32-01. COMPLETED IDLE LEAK CHECK & TAKE OFF POWER ASSURANCE TEST IAW EA 22-179-03514. LEAK CHECKED AND OPS TESTED GOOD.