Maintenance and Modifications
FAA STCs Hawker 800 winglet mod
It took a couple of years longer than expected, but operators of the Hawker 800 might find the wait has been worthwhile.

It took a couple of years longer than expected, but operators of the Hawker 800 might find the wait has been worthwhile. After three years of work, Aviation Partners last month finally obtained an STC for its performance-enhancing blended winglets for the Hawker 800 series. The company attributed the delay to Raytheon Aircraft’s refusal to provide certain baseline data (requiring Aviation Partners to redevelop the data in-house) and FAR changes making FAA supplemental type certification procedures more stringent.

The Hawker winglet ended up costing Aviation Partners some six times more to certify than the company’s first business jet winglet for the Gulfstream II, according to CEO Joe Clark. With certification issues behind it, the Seattle-based company is now eager and ready to begin installations.

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