<p>The airline states in Federal Court papers that it bought the Airbus superjumbos because they would carry 450 passengers and a payload of 60,900kg from Australia to Los Angeles, according to a report in The Courier Mail.<br /><br />But the new rules imposed by Rolls-Royce since one of its Trent 900 engines exploded on a Qantas A380 near Singapore last month mean that the world's biggest passenger jet is not a commercial proposition on the airline's Australia-US route. Qantas had grounded all six of its A380s after the explosion.<br /><br />Qantas, which has suspended the route, has asked for damages and costs.The airliner in its federal court papers have also sought a declaration from the court ordering the UK engine maker to fund a USD 1 million credit note relating to a guarantee against "uncontained engine failure" - to stop engine parts perforating the outer shield of an engine.<br /><br />Rolls-Royce is accused of negligence and breach of contract. Qantas in its statement of claim said Rolls-Royce continued to modify the Trent 900 engine, but left 23 engines on its big jets unmodified. At the time of the Singapore incident only one engine had been modified.</p>
<p>The airline states in Federal Court papers that it bought the Airbus superjumbos because they would carry 450 passengers and a payload of 60,900kg from Australia to Los Angeles, according to a report in The Courier Mail.<br /><br />But the new rules imposed by Rolls-Royce since one of its Trent 900 engines exploded on a Qantas A380 near Singapore last month mean that the world's biggest passenger jet is not a commercial proposition on the airline's Australia-US route. Qantas had grounded all six of its A380s after the explosion.<br /><br />Qantas, which has suspended the route, has asked for damages and costs.The airliner in its federal court papers have also sought a declaration from the court ordering the UK engine maker to fund a USD 1 million credit note relating to a guarantee against "uncontained engine failure" - to stop engine parts perforating the outer shield of an engine.<br /><br />Rolls-Royce is accused of negligence and breach of contract. Qantas in its statement of claim said Rolls-Royce continued to modify the Trent 900 engine, but left 23 engines on its big jets unmodified. At the time of the Singapore incident only one engine had been modified.</p>