What happened
On June 26, 2012, at 21:31 UTC, a Cessna 152, registration CS-AUR, was engaged in a night flight training session at Cascais Municipal Aerodrome (LPCS) in Portugal. The flight involved an instructor pilot and a student pilot. During the course of the training maneuvers, the aircraft experienced a ground collision.
The investigation
The GPIAA investigation examined the circumstances surrounding the aircraft's impact with the ground. The inquiry focused on the flight's final maneuvers, specifically the last touch-and-go sequence, and evaluated the technical state of the aircraft. Investigators analyzed the engine performance, specifically looking for evidence of fuel starvation, carburetor issues, or sudden throttle changes. The investigation also reviewed the instructor's night flight experience and the interaction between the instructor and the student during the flight. Additionally, the role of air traffic control communications and the use of non-standard phraseology were scrutinized.
Findings
- The investigation identified several factors related to the flight's conclusion, including the execution of the final touch-and-go.
- The investigation evaluated potential mechanical failures, including possible fuel-related issues such as contamination or starvation, and the functionality of the carburetor heat and ignition systems.
- The use of non-standard English phraseology by air traffic controllers was noted as a factor that can impact situational awareness for crews.
- The investigation examined the instructor's training techniques and the student's adherence to the approved instruction program.