Williams-powered learjet STC Delayed

 - October 17, 2006, 9:15 AM

Spirit Wing Aviation of Edmund, Okla., said it now expects to receive STC approval for its $2.2 million SpiritLear–a re-engined Learjet 25–in the first quarter of next year. Last year, the company expected certification this past summer. The SpiritLear employs the no-life-limit airframe of the Learjet 25 and replaces the original General Electric CJ610 turbojets with Williams FJ44-2C turbofans; revamps the pressurization, hydraulic, electrical and fuel systems; and updates the avionics to meet RVSM requirements.