Thu, Mar 10, 2011
Carbon Buildup In Engines Occurring At Lower Altitudes
The FAA is expected to issue a mandatory safety directive
Thursday which will limit operation of the Eclipse jet to no higher
than FL300. The move is prompted by engine surges caused by carbon
buildup which increases along with altitude.
The Eclipse was originally certified to FL410, but the carbon
buildup at high altitudes caused th FAA to limit the airplanes
maximum ceiling to FL370 in 2008. Now, the agency will impose a
further ceiling restriction on the aircraft.
The Wall Street Journal reports that there were four
instances of engines surging in the last few months of 2010, and
that the FAA says the problem constitutes a "risk to the flying
Pratt & Whitney, which manufactures the engines powering the
250 or so Eclipse jets flying today, said it expects to have a fix
available in a few months. That will consist of a replacement of
the combustion liners in the aircraft's engines.
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