What happened
On 1 October 2010, a private flight from Bromma Airport to Älvsbyn/Högheden Airfield ended in an accident after the pilot attempted a late go-around. Following a period of holding due to ground fog, the pilot initiated a right-hand circuit for runway 04. The approach was characterized by excessive speed and altitude. The Piper Saratoga, registration SE-IDT, touched down approximately 450 meters past the runway threshold.
Upon realizing the runway length was insufficient, the pilot commenced a go-around procedure. However, the maneuver was initiated too late and with full flaps extended, which hindered the aircraft's ability to accelerate and climb. The aircraft became airborne just before the runway ended, struck a young mixed forest 10 meters beyond the threshold, and eventually came to rest on a railway track 90 meters away. The pilot sustained minor injuries and was able to evacuate the wreckage alone.
The investigation
The Swedish Accident Investigation Authority (SHK) examined radar data and physical evidence at the site. Investigators analyzed the aircraft's flight performance, noting that the pilot had not performed landing performance calculations, likely because they believed the runway margins were sufficient. The investigation also reviewed the aircraft's maintenance records, confirming a valid Certificate of Airworthiness, and assessed the pilot's experience and flight planning.
Findings
- The approach speed was significantly higher than recommended, and the aircraft crossed the threshold at an excessive altitude.
- The landing was long, with touchdown occurring deep into the runway.
- The non-application of safe methods to identify and terminate an unsafe approach was the primary cause of the accident.
- The go-around was initiated with only a few seconds of available time to complete the necessary acceleration and climb.
- Unclear runway threshold markings may have hindered the pilot's ability to accurately assess the touchdown point.
- The use of full flaps during the late go-around impeded the aircraft's ability to regain flight.