What was found
ENROUTE AT FL410, RT ENG OIL PRESSURE BEGAN SLOWLY DECAYING UNTIL OIL PRESSURE LOW RT CAS ILLUM, FOLLOWED BY A ENG VIBRATION RT CAS. SUBSEQUENTLY SHUT DOWN RT ENG IAW QRH & DIVERTED TO KAPA. CHIP DETECTOR. METAL, SLUDGE & COKE PRESENT. LP & HP ROTATE FREELY W/ NO NOISE. REMOVED 1 QT OF OIL FROM ENG. OIL DARK W/ METAL. FILTER LOOKED CLEAN WITH NO DEBRIS NOTED. NO OIL LEAKAGE AROUND ANY OF GEARBOX SEALS. BOTTOM OF ENG IS CLEAN & DRY. COWLINGS CLEAN. OIL PRESS STARTED TO DROP SUDDEN & GRADUALLY DECLINED W/ NO CHANGE IN N2. WENT BELOW 20 PSIG FOR ROUGHLY 4 1/2 MINS BEFORE ENG SHUTDOWN. OIL FILTER HOUSING WILL NEED NEW PACKING, CHIP DETECTOR WILL NEED NEW PACKING, BOTH ACC GB DRAIN PLUGS NEED NEW PACKINGS. ORIG SUB DATE: 06-23-2026.