What happened
During the preflight phase of the flight, the pilot performed a standard inspection, which included verifying the engine oil levels. Following this, ground personnel replenished the oil reservoirs and reportedly fastened the filler caps. Shortly after takeoff, roughly two minutes into the flight, the pilot observed a warning light indicating low oil pressure in the right engine.
After notifying Palm Beach Approach Control of the mechanical issue, the pilot deactivated the right engine and initiated a return to Lantana. While performing the approach to runway 03 with flaps fully extended, the pilot heard a radio transmission from another aircraft taxiing for departure. Consequently, the pilot decided to execute a go-around approximately 1500 feet from the end of the 3000-foot runway.
During the transition to runway 15, the aircraft type collided with the ground. Post-accident investigations of the wreckage revealed that oil was streaming from behind the right engine onto the wing strut.
Findings
An examination of the engine components determined that the oil filler cap had not been correctly secured. This failure to properly install the cap was the primary factor leading to the loss of oil pressure.