What happened
On November 10, 2023, a Cessna 150J, registration D-ERIT, was performing a training mission at the Ponte de Sor aerodrome in Portugal. During the takeoff phase of the flight, the aircraft's engine failed. The failure was caused by fuel exhaustion. Following the loss of engine power, the aircraft experienced a loss of control while the crew attempted to return to the runway, leading to the accident.
The investigation
The GPIAAF investigation examined the flight history, aircraft maintenance records, and the fuel system of the aircraft. The investigation focused on the mission planning and the management of the aircraft's endurance. Investigators analyzed the fuel system, the carburetor induction system, and the maintenance practices of the operator, Sevenair Academy. The inquiry also looked into the regulatory framework regarding the oversight of maintenance organizations and the management of component service lives.
Findings
- The primary cause of the engine failure was fuel exhaustion.
- The aircraft's engine operating hours were not being precisely tracked in accordance with manufacturer guidelines.
- There were identified gaps in the operator's safety management system regarding standardized procedures for engine failures at takeoff (EFATO).
- Concerns were noted regarding the reliability of the carburetor system, specifically regarding potential malfunctions or ice formation.
Safety action
- Safety Recommendation PT.SIA 2024/01: It is recommended that Sevenair Academy, in coordination with its airworthiness management services, implement a precise method for controlling engine working hours to ensure compliance with manufacturer requirements.