What was found
R ENG OIL PRESS LOW CAS ILLUMINATED - IN FLIGHT AT FL410 RIGHT ENG OIL PRESS LOW RED CAS MESSAGE ILLUMINATED. OIL PRESS WAS CONFIRMED LOW ON EICAS. FOLLOWED CHECKLIST AND SECURED THE ENGINE. ON POST FLIGHT NO VISIBLE OIL LEAKING FROM RIGHT ENGINE AND VISUAL CHECK OF OIL SIGHT GAUGE SHOWED IN THE NORMAL RANGE. MDC B3 CODE 303731. PER MAINTENANCE CONTROL SWAPPED LH AND RH OIL FILTER MODULES AND OIL PRESSURE TRANSDUCERS IAW AS907-2-1A LMM 72-05-22. REMOVED AND REPLACED W4 HARNESS WITH NEW IAW LMM 72-05-22. ALL OPERATIONAL AND LEAKS CHECKS SATISFACTORY AT THIS TIME.