Learjet Crew USB Charging Now EASA-Approved for CHRONOS® Digital Clock
NEW CENTURY, KANSAS, August 15, 2025 – Butler Avionics, a subsidiary of Butler National Corporation (OTCQX: BUKS), a leading intergrator and provider of support systems for commercial and military aircraft and a recognized provider of management services in the gaming industry, announces the issuance of a European Union Aviation Safety Agency (“EASA”) Supplemental Type Certificate (“STC”) approval for a replacement clock that includes USB-A and USB-C chargers in Learjet Model 31A, 35, 35A, C21A, 36, 36A, 55, 55B, 55C, 60 and 60XR airplanes.
The EASA STC approval of STC No. ST00235MC authorizes the replacement of the existing OEM-installed clocks with the Avcon Industries, Inc./Butler Avionics, Inc. designed installation of the Mid-Continent Instruments and Avionics CH93 Series CHRONOS® Digital Clocks with USB Chargers. The installation fits within the same panel location and requires only circuit breaker and wiring changes.
Patrick Hupp Avionics Manager of Butler Avionics, said, “We are pleased to offer this USB charging upgrade to European operators of legacy Learjets. This EASA approval expands our ability to support pilots and crews around the globe with practical, modern cockpit solutions. The CHRONOS installation was designed for minimal downtime and ease of retrofit, giving operators a straightforward way to add valuable functionality.”
“CHRONOS is a simple, drop-in replacement for most existing clocks,” said Van Winter, Director of Aftermarket Sales and Support for Mid-Continent Instruments and Avionics. “This cost-effective upgrade adds superior, FAA-approved functionality to the flight deck with minimal impact to the instrument panel.”
For more information about the FAA- and EASA-approved CHRONOS installation kit for Learjets, contact Butler Avionics at 913-829-4606 or info@butleravionics.com.
Click here for the PDF version of the press release.
Butler Avionics Business:
Since its inception in 1969, Butler Avionics, Inc. offers avionics integration, installation and repair services. Butler Avionics works with its parent company, Butler National Corporation, and affiliate Avcon Industries, Inc. to provide custom and regulatory avionics solutions for business, air transport and general aviation aircraft. Butler Avionics is a FAA Repair Station.
Avcon Industries Business:
Avcon Industries, Inc. operates in the Aerospace business and focuses on the modification of business and commercial aircraft, which includes both complex structural modifications and system integrations. Avcon specializes in providing products and services to the business marketplace, the forestry and atmospheric research space, the Intelligence, Surveillance and Reconnaissance (ISR) sector, and the air ambulance segment.
Avcon is recognized for providing solutions to regulatory-driven aircraft modifications.
Avcon Industries, Inc. is a wholly owned subsidiary of Butler National Corporation. Butler National Corporation is a publicly traded stock company with at ticker symbol: OTCQX: BUKS.
FOR MORE INFORMATION, CONTACT:
| Patrick Hupp, Avionics Manager phupp@butleravionics.com | Ph (913) 829-4606 |