Airbus has acknowledged wider A350 quality problems after a Reuters investigation in November revealed that at least five other airlines had reported similar findings.
But it has accused Qatar Airways alone of misportraying them as safety issues.
Monday's filing said it was in the interests of the airline, which launched the A350 programme as its largest customer, to keep the planes grounded and seek Airbus compensation because of lower long-haul travel demand following the pandemic.
Qatar Airways has said the country's regulator is strictly independent and that it needs the planes to fly for the World Cup, forcing it to lay out new costs in leasing replacement aircraft or bringing recently mothballed Airbus A380s back into service.