As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A NIGHT FLIGHT, PILOT NOTICED DECREASE IN TRANSMISSION OIL PRESSURE. ON LANDING (STILL HAD SOME PRESSURE INDICATION) FOUND OIL ALL OVER THE ENG COMPARTMENT AND THAT THE AFT FREEWHEEL ADAPTER SEAL PN: 209-340-265-103 HAD COME OUT OF THE AFT ADAPTER HSG. SEAL AND ADAPTER SHOWED EVIDENCE OF SEALANT REMAINING FROM THE ORIGINAL INSTALLATION. THIS ACFT WAS DELIVERED AFTER THE AFFECTIVITY OF ASB 407-07-79.