What was found
APPROACHING DESTINATION HOSPITAL WITH MEDICAL CREW AND PATIENT ONBOARD, NR 1 ENGINE OIL TREND CAUTION ILLUMINATED FOLLOWED SEVERAL SECONDS LATER WITH NR 1 ENGINE OIL PRESSURE INDICATION FALLING BELOW NORMAL LEVEL (WITH ASSOCIATED RED COLOR CODE). OIL PRESSURE INDICATION STABILIZED AT 17% (NORMAL RANGE IS 21-80%). NR 1 ENGINE OIL TEMP REMAINED NORMAL. NR 1 ENGINE OIL LOW PRESSURE WARNING (TRIGGERED BY AN INDEPENDENT PRESSURE SWITCH) DID NOT ILLUMINATE. DIVERTED TO KDSM AIRPORT & MADE UNEVENTFUL PRECAUTIONARY LANDING USING SE PROFILE WITH BOTH ENGINES TO FLY AND PRODUCING NORMAL POWER.