DOHA, QATARQatar Airways took their dispute with Airbus to social media with a video showing the damaged exteriors of grounded A350 jets. The Doha-based carrier says its safety concerns are serious and legitimate.

Airbus and Qatar Airways have been locked for months in an ongoing dispute over degeneration to paint and anti-lightning protection on it Airbus A350 jets. The European planemaker insists that the issue is happening prematurely but does not represent any safety issues.

Qatar Airways hit back on Friday with the first official images of jets grounded by the country's civil aviation regulator.

The dispute has led to the grounding of 21 planes out of 53 A350s operated by Qatar Airways, casting a pall over the airline's preparations for the World Cup later this year.

Qatar Airways demanded $618 million in compensation, plus $4 million more per day for each day the A350 planes were kept idle.

Qatar Airways is pressing a London court for compensation of more than $600 million, while Airbus raised the stakes on Thursday by revoking a separate order for 50 A321neos, portraying the rift as a contractual rather than safety spat.

In the video lasting just over a minute and a half, Qatar Airways showed degradation on two A350s grounded by the country's regulator.

Airbus has said there is "no reasonable or rational basis" for the groundings, which have not been matched by operators of A350s in other countries.

The clip showed peeling or missing paint and damage to underlying anti-lightning protection, as well as what the airline described as patches of the underlying structural carbon fiber exposed to moisture and ultraviolet light.

The images echoed damage to A350s first revealed in pictures, as part of an investigation showing at least five other airlines had reported A350 surface damage since 2016, well before the Qatar dispute.

"We continue to strongly believe that Airbus must undertake a thorough investigation of this condition to conclusively establish its full root cause," Qatar Airways said.

Airbus says it has provided the relevant information and concluded that there is no airworthiness risk, a view echoed by Europe's aviation regulator.

Airbus had no immediate comment on the video.