Incident Overview
On 8 September 2024, a Boeing 737-8 MAX, registration SP-LVA, operated by PLL LOT SA, performed a flight from Adolfo Suárez Madrid–Barajas Airport (LEMD) to Warsaw Chopin Airport (EPWA). After landing and parking at the stand, the cockpit crew was informed by ground personnel that the refueling station access door had been open during taxi. Subsequent inspection revealed mechanical damage (bending) to the hold-open tube assembly.
Findings
The investigation determined that the refueling panel had not been properly closed at the departure airport. The forces acting on the aircraft during landing caused the panel to open. Additionally, the pre-flight inspection by the flight crew was conducted before fueling was completed.
Probable Cause
Inaccurate closing of the refueling panel at the departure airport, which opened due to forces acting on the aircraft during landing.
Contributing Factor
Performance of the pre-flight inspection by the flight crew before completion of fueling.
Safety Actions
The operator disseminated a reminder to fuel service personnel about the necessity of thoroughly checking the closure of panels before completing fueling operations. No safety recommendations were issued by the investigation body.