Jet ZK027 has issued a 7700 squawk, indicating a general emergency. The plane had been flying off the coast of Holyhead in west Wales when it issued the alert. The jet is a Valley Hawk T2, which is used to train pilots to fly at speed.
Aviation observers expressed alarm at the squawk on Twitter.
One said: “ZK027 is off radar now.”
Another said: “I get alerts whenever a plane calls an emergency and a RAF Jet REG ZK027 has just stopped dead there, now there’s another Jet going towards it.”
A third said the plane “has either landed or gone out of range wearing 7700”.
A 7700 squark is understood to be a common alert which could indicate an incident has occurred or there is a problem with the aircraft.
As the jet has gone off the radar, it is likely to have already landed.
The RAF will confirm what has happened shortly.
This is a breaking story, more to follow…
