As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK, EMERGENCY DECLARED. CLIMBING THROUGH 4000 RT ENG OIL PSI FLUCTUATED FROM 80-5 PSI. STOPPED CLIMB. RAN CK LIST AND SHUTDOWN RT ENG BEFORE LANDING UNEVENTFUL OTHERWISE. RESECURED/TORQUED LOOSE OIL SCAVENGE LINE IAW AMM 79-21-13. PERFORMED WINDMILLING INSPECTION PER EO-13005 & AMM 72-00-00-216-499-P00. NO LEAKS FOUND. OIL PRESSURE STABLE. OKAY FOR CONTINUED SERVICE.