Global Express – Fixed Cowl Chafing 

Global Express – Fixed Cowl Chafing
Global Express: Fixed Cowl Chafing

During engine R&R or during a 120/240-month inspections, West Star Aviation has been discovering chafing of the fixed cowl on Global aircraft from a bleed air clamp.  This chafing has been observed roughly 15 to 18 times over the past two years.

The issue requires a Technical Variance, in which Rolls-Royce will either call out a repeat inspection of the area.  Technical Variance normally requires a reoccurring inspection of the chaffed area every 50 Flight hours up to 200 flight hours.   At 200 flight hours a blend or weld repair will be required. If weld repair is required, the engine and fixed cowl must be removed in order to complete the weld.

In some instances, Rolls-Royce may require an immediate repair if the chafe is too deep.  The repair for this issue is a titanium weld repair, with the process taking about 7 to 9 working days. 

For more detailed information, please contact one of the West Star Aviation Global Specialists listed below.

Robert Peyman

Robert Peyman

Technical Sales Manager
Challenger & Global
(ALN)
Tel 618.258.8090 rpeyman@wsa.aero

George Laiten

George Laiten

Director of Bombardier Product Development
Cell 618.798.1173 glaiten@wsa.aero

Jeff Olson

Jeff Olson

Challenger Program Manager
(GJT)
Tel 970.248.5254
jolson@wsa.aero

Steve Smith

Steve Smith

Challenger/Global Program Manager
(CHA)
Cell 423.356.0325
stsmith@wsa.aero

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