What happened
On November 14, 2023, at approximately 19:00 local time, an Airbus A320-214, registration HB-JZR, was operating a commercial flight under Instrument Flight Rules (IFR). The aircraft, operated by EasyJet Switzerland SA, was traveling from Nice Côte d'Azur Airport (LFMN) toward Geneva Airport (LSGG). During the flight, the crew declared a fuel emergency due to insufficient remaining fuel. Consequently, the aircraft diverted to Zurich Airport (LSZH), where it landed safely. Following the landing, it was determined that the amount of fuel remaining on board had fallen below the absolute minimum required final reserve fuel.
The investigation
The Swiss Transportation Safety Investigation Board (SUST) initiated an investigation into the incident to determine why the aircraft's fuel levels reached such critical levels. The inquiry focused on the fuel management during the flight from Nice and the circumstances that led to the declaration of an emergency and the subsequent breach of minimum fuel reserves.