Duncan Aviation’s Engineering & Certification Services has developed a Supplemental Type Certificate (STC) covering the equipment upgrade from Gogo Business Aviation’s legacy Air-to-Ground (ATG) systems to the newer AVANCE L3 Wi-Fi system for operators of the Hawker 800XP (HS-125/800XP) business jets. Subject STC was completed on such an aircraft at Duncan Aviation’s satellite facility on Chesterfield, Missouri’s Spirit of St. Louis Airport (SUS).
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