As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLUCTUATING OIL PRESSURE ON NR 1 ENGINE. WENT FROM 102 TO 180 SETTLING TO 160 IN CRUISE. FOUND LINE DISCONNECTED AT BOTTOM OF DEOILER. SECURED LINE. RAN ENGINE AT IDLE FOR 5 MIN. NO LEAKS FOUND. REPLACED NR 1 ENGINE OIL SCAVENGE VALVE AND OIL PRESSURE TRANSMITTER FOR PRESS FLUX.