As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DECREASING OIL PRESSURE WITH SLIGHT FLUCTUATIONS ON NR 1 ENGINE. PRECAUTIONARY ENGINE SHUTDOWN CARRIED OUT - UNEVENTFUL LANDING. INBOARD LINE FROM OIL COOLER FOUND TO BECAUSE OF OIL LEAK. NO PREVIOUS RECORDED ACTIVITY PACK TO ORIGINAL INSTALLATION RELATED TO CAUSING THE LOOSENING OF THE FLARED FITTING.