Trouble with RR Trent 700 on A330-300s

Date:         04 Jun 97 01:45:40 
From:         "Marc Schaeffer" <>
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On one of the news-servers I read that Dragonair and Cathay Pacific have
grounded their fleet of 4 (KA) and 11 (CX) A330-300,  because of questions
about the reliability of their Rolls-Royce Trent 700 engines.

The suspensions followed the failure of a Trent 700 engine on a Dragonair
A330.  It was the latest in a series of single-engine landings by Airbus
A330-300 planes from the two airlines. Note that the B777 have not been
grounded, they use Trent 800 engines.

CX said the airline did not aim at putting on replacement aircraft, while
the KA statement said it was evaluating whether to lease additional
aircraft on a short-term basis to offset lost A330 capacity. The 15
airplanes could be grounded anywhere between a few days and a few weeks.

The problem with gearbox bearings in the RR Trent 700 engine have been
identified and understood and a long-term design solution had been found,
but would have to be endurance tested before it !

I would like to get comments about the following :

 - Does anybody out there (perhaps from RR) have more info on these
   gearbox bearings ?
 - How long such a redesign will normally take ?
 - Who will pay the grounding and other costs ?
 - Are other engine series not affected (as stated in the report) by
   these problems ?

I would appreciate any inputs

Marc SCHAEFFER, Luxembourg // (

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