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The recognized leader in Citation Performance Enhancement Modifications had its modest beginnings in early 1983, in the south central Texas community of Uvalde. Sierra originated as a Flight Operations and Aircraft Maintenance Center with a toe-hold in the modifications industry. The company prospered under the able direction of its President, Mark Huffstutler and within a few years had received FAA approval for a number of STC’d modifications applicable to selected single-engine and twin-engine aircraft. In 1986, Sierra obtained the rights to produce the Eagle modifications and Longwing modifications pertaining to certain models of Cessna Citation aircraft.
Personnel and Facilities
The employee base includes a nucleus of Aircraft Maintenance and Aircraft Modification Specialists consisting of highly trained, FAA-licensed mechanics, under the direction of a select group of FAA-approved inspection and quality assurance personnel. They are supported by an extremely capable and highly diversified office staff, providing the logistical expertise for the entire operation. A well-equipped Sheet Metal Shop and a state-of-the-art Machine Shop manufactures replacement and aircraft repair parts and FAA approved parts under a Parts Manufacturing Authority (PMA) setup. The Sierra Industries facility was certified in 1993 as an FAA Approved Repair Station under Air Agency Certificate No. SI6R285J.
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