As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 OIL PRESSURE WARNING LIGHT FLICKERED SEVERAL SECONDS AND OIL PRESSURE FLUX BETWEEN 55-65 PSI THRU CLIMBOUT. R & R NR 1 ENGINE OIL PRESSURE SWITCH IAW ENGINE BUILDUP 71-00-02. SERVICED NR 1 ENGINE WITH 3 QUARTS OF OIL. GROUND RUN WITH NO LEAKS, OPS CHECKED GOOD.