What happened
On December 2, 2004, at approximately 09:45 UTC, two training aircraft operated by the Aero Club di Bolzano were returning to Bolzano Airport (LIPB) after encountering adverse weather while en route to Belluno. The first aircraft, a Piper 28-A with registration D-EZEN, was operated by a student pilot, while the second, a Cessna 172 with registration D-ECBF, was operated by an instructor.
Initially, the student pilot in the D-EZEN intended to land on runway 19 via a right downwind pattern. However, the instructor in the D-ECBF suggested that the student perform a touch-and-go for runway 01 to follow the instructor's lead. The student pilot subsequently changed his intention to a full stop on runway 01.
During the approach, the AFIS (Aerodrome Flight Information Service) operator advised the instructor that the student was landing on runway 19, but the instructor noted the student was in sight behind them. As both aircraft approached runway 01, the D-ECBF entered short final for a touch-and-go. The investigation established that both aircraft occupied the runway at the same time. While the pilots' accounts differed regarding the exact touchdown points, the objective evidence showed the D-EZEN was decelerating on the runway while the D-ECim performed a touch-and-go, passing over the first aircraft at a distance of less than 200 meters.
The investigation
The ANSV examined radio transcripts between the aircraft and the AFIS operator, as well as statements provided by the pilots. The investigation noted that Bolzano Airport operates under AFIS, which provides information and alerts but does not provide air traffic control services. Consequently, the responsibility for maintaining separation between aircraft rests solely with the pilots.
Findings
- The primary cause was inadequate separation between the two aircraft during landing.
- The instructor pilot in the D-ECBF influenced the student pilot to alter his planned landing for runway 19.
- There was suboptimal coordination between the two flight crews during the landing phase.
- Radio communications were inadequate for ensuring safe separation.
- The student pilot modified his landing plan based on the instructor's suggestion, leading to the simultaneous runway occupancy.