The model in question is the extra long range version of its newest plane, the A 3 to 1 neo.

Boeing says it could pose a fire risk due to its fuel tank.

In a submission to European regulators, Boeing said the design of the fuel tank intended to increase the plane's range pose many potential hazards.

In most jets, fuel is carried in wings and central tanks.

But to meet demand for longer routes, Airbus plans to mold a tank directly into the fuselage.

Its shape will follow the contours of the jet and carry more fuel.

The design is crucial to the A 3 to 1 x L R s main market employ to be the longest range of any single aisle jet and is due for release in 2023.

Boeing's intervention is not unusual in a global system, which regularly allows manufacturers to chime in when safety rules are being interpreted.

But the timing is pivotal.

The U.

S plane giant is trying to repair its image following the crisis over at 737 max, that plane model was grounded for almost two years following two deadly crashes.

The airline industry, which has been battered by the global health crisis, is now facing tougher scrutiny.

While insisting they never compete on safety, Airbus and Boeing have a record of goading each other on technical issues.