A Lufthansa-operated Airbus A320neo passenger aircraft that took off from London bound for Munich returned to Heathrow Airport after declaring an emergency due to a reported technical issue shortly after departure. The aircraft remained airborne for approximately 30 minutes.
Emergency signal issued 23 minutes after take-off
According to FlightAware flight tracking data, Lufthansa flight LH2473 was scheduled to depart from London Heathrow Airport at 11:20 local time on Thursday, 22 January. However, the aircraft took off at 11:55.
According to information reported by the British press outlet The Independent, approximately 23 minutes after take-off, the flight crew reported a technical issue on board. The aircraft then transmitted the 7700 code, known internationally as an emergency signal.
What does the 7700 code mean?
According to the California Aeronautical University, the 7700 code can indicate any type of emergency encountered during flight. This code can be entered by pilots directly or at the instruction of air traffic control in situations such as:
- Mechanical and technical malfunctions,
- Engine problems,
- Medical emergencies.
Following the transmission of the emergency code, ground teams cleared the runway and prepared emergency services for possible intervention.
Decision to turn back taken at 14,000 feet
Flight data revealed that flight LH2473 issued the emergency signal while climbing to an altitude of 14,000 feet. The pilots halted the climb and executed a sharp turn back towards the departure point. Radar records showed that the aircraft completed a full circuit around the airport.
According to FlightAware, the aircraft landed safely at Heathrow Airport at 12:18 local time.
Fire alarm and engine shutdown claim
A source speaking to aviation news website AIRLIVE claimed that the aircraft diverted due to a fire alarm. The same source alleged that the pilots were forced to shut down the number one engine during the climb.
Similarly, Aviation Herald reported that passengers stated the left engine was shut down following a fire warning.
Statement from Lufthansa: “Technical reasons”
In a statement to The Independent, a Lufthansa spokesperson said the flight “had to return due to technical reasons.” Heathrow Airport officials referred comment requests to Lufthansa. The airline did not respond promptly to a request for comment from PEOPLE.
It was reported that following the aircraft’s landing, security teams carried out a detailed inspection and passengers were later transferred to another flight.
