Incident Overview
On August 17, 2016, a Cessna 152 aircraft experienced an incident during its takeoff roll at Bydgoszcz-Szwederowo airport (EPBY). The pilot reported aborting the takeoff due to uneven engine operation. The aircraft then decelerated on the runway without external assistance.
Pilot Actions
According to the pilot's statement, the preflight inspection was performed inadequately. Specifically, the pilot omitted the step of draining fuel sumps and checking them for water and contaminants. The aircraft's flight manual requires that before each flight day and after every refueling, a small amount of fuel must be drained from both wing tanks and the fuel filter located in the engine compartment.
Cause of the Incident
The investigation determined that the omission of draining fuel sumps during the preflight inspection likely contributed to the uneven engine operation, leading to the aborted takeoff during the ground roll.
Preventive Measures
Following the incident, the entity conducting the investigation (Grafprom Aviation Sp. z o.o.) implemented two preventive actions: (1) training on aircraft refueling procedures and preflight inspections, and (2) increasing the frequency of checks matching the fuel sump drainage list with the fuel consumption register.
No safety recommendations were issued by the commission.