What was found
AFTER ROTATION, RT OIL PRESSURE FLUCTUATED TO AROUND 40 PSI AND OIL AURAL WARNING SOUNDED. OIL PRESSURE IMMEDIATELY RETURNED AND MAINTAINED NORMAL PSI. SERVICED RT ENGINE OIL, 3 QTS. INSPECTED ENGINE, NO LEAKS FOUND. FILTER BYPASS PINS NOT POPPED, TRANSMITTER WIRING AND CANNON PLUG OK. PERFORMED ENGINE RUN UP, OIL PRESSURE INDICATION NORMAL.