On May 23, 2023, a Turkish Airlines Airbus A321neo en route from Istanbul to London-Gatwick had to report an emergency due to fuel shortage. The TC-LSN had to switch to Birmingham Airport.

First one undertook an unsuccessful landing attempt in Gatwick. The pilots did not try a second time at this airport, but an air emergency was declared. First, the transponder code 7700 was broadcast. This stands for a general emergency. It was specified over the radio that there was a shortage of fuel. Air traffic control then assigned the machine to Birmingham Airport, which is around 180 kilometers north of Gatwick.

The medium-haul jet from Turkish Airlines was able to land safely there. How it came about that the A321neo had so little fuel on board has yet to be investigated. In any case, the TC-TSN was in a holding pattern for around five minutes before the unsuccessful attempt to land at Gatwick. Other commercial aircraft have been able to land at London's second busiest airport before and after without any problems.

According to official information, however, the volume of traffic in Gatwick should have played a role. The landing attempt was aborted on the instructions of the tower. Subsequently, the machine is said to have reached the minimum values, so that a diversion to Birmingham would have been necessary. The TC-TSN was refueled at the alternative location and then it went to the actual destination, London-Gatwick.