What happened
On February 21, 2002, a Swiss-registered Beechcraft BE F35 departed Egelsbach for a flight to Grenchen, Switzerland. During the flight, the pilot decided to abort the mission due to deteriorating visibility and initially intended to return to Egelsbach. However, the pilot subsequently diverted to Mannheim City airport.
At approximately 14:31, the pilot received landing clearance for runway 27. While flying at an altitude of approximately 3 meters, the pilot initiated a missed approach. During the transition into the crosswind climb, the engine failed. The aircraft entered an accelerated stall and pitched forward, impacting a garden allotment area vertically. Although the pilot broadcast three "Mayday" calls and survived the initial impact, he succumbed to his injuries at the scene.
The investigation
The BFU investigation examined the aircraft's configuration, the pilot's experience, and the mechanical state of the engine. Investigators found that the aircraft's fuel tank selector was set to the auxiliary tanks. According to the manufacturer's manual, these tanks are intended for use during cruise flight only. The investigation also reviewed the pilot's flight logs, noting that while the pilot held a valid private pilot license, he had very limited experience on the Beechcraft BE F35, with only 4 hours and 10 minutes of flight time on this specific model. Furthermore, the pilot had not received a formal transition training or check-out on this aircraft type.
Findings
- The primary cause of the accident was the incorrect fuel tank selection, which led to an interruption of fuel flow and subsequent engine failure.
- The pilot's lack of experience on the Beechcraft BE F35 and the decision to perform a missed approach in a 10-knot crosswind contributed to the loss of control.
- The aircraft entered an unrecoverable state due to the high angle of attack during the climb following the engine failure.
- The pilot was not wearing his seatbelts, which may have decreased his chances of survival.
- There were no mechanical defects found in the aircraft or the engine.