As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAMEOUT ON GROUND PRIOR TO FLIGHT, THE NR 1 ENG HAD AN UNCOMMANDED SHUTDOWN AS THE OIL PRESSURE INDICATION WAS READING ZERO. THE PROBLEM WAS TRACED BACK TO A CONTAMINATED P3 AIR PASSAGE AT THE MAIN OIL PRESSURE SHUT OFF VALVE. ALL LINES AND PASSAGES WERE CLEANED BEFORE GROUND TESTS FOUND THE ENGINE OPERATING NORMALLY. THE ACFT WAS RETURNED TO SERVICE.