A British Airways flight operating between London and Marseilles has declared an emergency whilst transiting French airspace .The flight is currently initiating a diversion and return to London Heathrow.
British Airways flight BA336 London – Marseilles
British Airways flight BA336, an Airbus A320 operating from London Heathrow Airport (LHR) to Marseilles (MRS) declared an emergency, squawking code 7700 whilst in the cruise over French airspace.
The aircraft is not making a direct return to London Heathrow.
Return to London at reduced altitude
Flight BA336 made a descent from cruising altitude of FL330 (33,000 feet) and is currently making the return to LHR at the reduced altitude of 10,000 feet.
With the aircraft now over the English Channel on a direct track for London Heathrow, the flight currently maintains a low altitude return at 10,000 feet. This may suggest an issue with the cabin pressurization system, though this has not been confirmed.
Data shows the flight declared the emergency in the descent from FL330 at 06:50 UTC.
The aircraft conducting today’s flight is an Airbus A320-200, registered G-EUUC; a 21 year old aircraft belonging to the national flag carrier British Airways.
Weather for the flight’s return to LHR this morning is marginal VFR (Visual Flight Rules), with broken cloud at 1,300 foot ceiling, light winds and visibility 10 kilometres or more.
Update 07:40 UTC
Flight BA336 is now under radar vectoring for arrival Heathrow and establishing on finals RWY27. The aircraft, registered G-EUUC was previously involved in an emergency declaration and return to LHR last week.
In the incident on Friday 21 September, the aircraft was operating as flight BA508; a scheduled service from London Heathrow to Faro (FAO).
This is a developing story. Please check back for updates.