What did Rolls Royce know and when?

Rolls Royce have been conspicuously silent but it is now emerging from the airlines that Rolls Royce knew something was amiss with the older versions of the Trent 900 long before the engine failure on QF32 on November 4th. The indications are that they had serious doubts about the unmodified engines by May this year – and perhaps even earlier.

I posted my assessments about this on November 14th and 15th.

Did Rolls Royce know about the risk for a Trent 900 failure before the Qantas accident?

Problem with Trent 900 was known before accident and raises ethical questions

From an AP report via Yahoo Finance

Rolls-Royce modified a problematic section on new models of its engine for the world’s largest jetliner months before one caught fire and blew apart over Indonesia, a Lufthansa spokesman said Thursday.

The chief executive of Qantas, meanwhile, said Rolls-Royce had made modifications to the Trent 900 engine without telling the airline or Airbus, which makes the A380 superjumbo.

The officials’ remarks were the strongest indication yet that Rolls-Royce had addressed a defect in new models of the engine while allowing Airbus A380 superjumbos to continue flying with unmodified older models.

Lufthansa’s first A380, delivered by Airbus on May 19, had three newer versions of the Trent 900 engine and one older version, airline spokesman Thomas Jachnow said.

“When we got our first aircraft it was curious that one was from an older one and three were totally new from the production line,” Jachnow said. “I think this is more or less the cusp where the old to new happened.”

The Daily Telegraph carries a similar story:

The two airlines said Rolls had not informed them about the changes to the Trent 900, although sources close to the industry played down the modifications as “continuous improvements” and said reports that the changes related to the part that caused the oil leak on the Qantas A380 were “plain wrong”.

Rolls shares fell 11½, or 2pc, to 592p.

Investors are wary that the incident could cost Rolls customers. It is understood there are 22 A380s – bought by Qatar Airways, Kingfisher, Etihad and Air Austral – which are yet to decide whether to use the Trent 900 or a rival made by GE and Pratt & Whitney.

According to Alan Joyce, Qantas chief executive, up to 40 engines could be replaced. Mr Joyce also claimed that Rolls had already been changing the engine. “Rolls-Royce have gone and modified certain parts of this engine,” he stated. “If this was significant and was known to be significant, we would have liked to have known about that. We and Airbus weren’t aware of it. But it depends on what the purpose of modifications were for. It doesn’t look like it’s a significant modification, but it is a modification that has an impact on how the engines are performing.”

A Lufthansa spokesman said it had noticed differences in newer versions of the Trent 900 it had been sent.

In addition to all their technical and logistic issues, Rolls Royce now need to urgently address their loss of credibility and provide detailed answers to:

What did Rolls Royce know and when did they know it?


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