Mon, Aug 16, 2010
Longer Time On Wing, No Scheduled Hot Section Inspections Or
Overhauls
GE Aviation has made an on-wing engine upgrade program
available for certain configurations of the CF34-3A2 engine, which
will allow the engines to go from a hard-time maintenance schedule
to an on-condition maintenance schedule. The upgraded engines will
have longer time on wing and greatly reduced maintenance costs with
no scheduled hot section inspections or overhauls.
"Offered as part of GE Aviation's OnPoint solution agreement,
the new on-wing engine upgrade is an improvement to the CF34
modernization program released four years ago and is backed by all
the assurances included in our services agreements," said Bill
Hoernschemeyer, general manager of Business and General Aviation
Sales at GE Aviation. "This new program for CF34-3A2 engines can be
accomplished without a shop visit if the engine configuration meets
the requirements specified in the bulletin. Converting these
scheduled maintenance engines to on-condition will increase the
time on wing for the engine, reduce maintenance expenses and
improve the aircraft's resale value."
The new on-wing upgrade is available for 36 CF34-3A2 engines
that are in service on Challenger 601 aircraft.
Challenger 601 File Photo
The original CF34 modernization program is available for all
CF34-1A and -3A and all remaining CF34-3A2 engines. This upgrade
must be performed during an overhaul at GE's Strother facility, a
GE Branded Service facility, or other GE-authorized shop. For these
CF34 engines, GE says the upgrade involves the replacement of
the engine's existing honeycomb shrouds in the high pressure
turbine with advanced steel shrouds and the addition of a borescope
port. The combustor liner will also be replaced with a more durable
liner.
With the upgrade, the engines will be fully on-condition with
next unscheduled shop visit typically driven by the cycle limited
parts lives.
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