Qantas CEO Alan Joyce said he was flying the first leg of the Sydney-Singapore-London flight as a sign of the airline's conviction that it had completed all modifications and other checks on the Rolls-Royce engines, and the planes were safe to fly."
It was the most serious safety incident for the world's largest and newest jetliners. Other airlines using the Trent 900 engine on A380s -- Singapore Airlines and Germany's Lufthansa -- also briefly grounded some planes while safety checks were conducted.
Qantas' checks have been more exhaustive than those of the other airlines. It has replaced 16 of the Trent 900 engines -- each A380 has four of the bus-sized engines.
Qantas is putting just two of its A380s back into service while modifications are made on engines on the other aircraft in its fleet. The plane that suffered in the midair blowout is still in Singapore, where investigations are continuing.
Qantas says it will eventually pursue compensation from Rolls-Royce for the failure and losses from grounding its fleet, but that it is confident the problem has been fixed.
The airline is due to take delivery of two more A380s with Trent 900 engines in coming weeks, and Joyce says they will be put directly into service.
But Qantas has suspended A380s from its longest-haul flights -- from Australia direct to Los Angeles -- while it tests whether extra thrust for takeoff on these routes creates too much stress on the engines.
The Australia-U.S. flights are among the longest nonstop commercial flights in the world, and the A380s must load up on more fuel than on other flights to make them. That means the planes are heavier at takeoff and need more thrust.
The thrust Qantas uses is within the certified specifications of the Trent 900, and the manufacturers and the European regulator that ensures safety standards consider it safe to fly those routes. Qantas says the suspension is precautionary because it wants to conduct its own tests.
Saturday's flight used a reduced thrust setting.
No comments:
Post a Comment