8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549
FORM 8-K
CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of report (Date of earliest event reported) June 22, 2005
BUTLER NATIONAL CORPORATION (Exact Name of Registrant as Specified in Its Charter)
Kansas (State or Other Jurisdiction of Incorporation)
0-1678 (Commission File Number)	41-0834293 (IRS Employer Identification No.)
19920 W. 161st Street, Olathe, Kansas (Address of Principal Executive Offices)	66062 (Zip Code)
913-780-9595 (Registrant's Telephone Number, Including Area Code)
Not Applicable (Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01	Other Events
Item 9.01	Financial Statements and Exhibits
Exhibit 99	Press release announcing Latin American success in the sale and delivery of RVSM for the Learjet 20 Series.
On June 22, 2005, Butler National Corporation issued a press release announcing that Avcon Industries, a wholly owned subsidiary has experienced a great deal of success in sales and delivery of Reduced Vertical Separation Minimums (RVSM) for the Learjet 20 Series airplanes in the Latin American market. A copy of the press release is attached as an exhibit to this Report on Form 8-K. See attached Exhibit 99.

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
	BUTLER NATIONAL CORPORATION (Registrant)
June 22, 2005 Date	/S/ Clark D. Stewart Clark D. Stewart (President and Chief Executive Officer)
June 22, 2005 Date	/S/ Angela D. Seba Angela D. Seba (Chief Financial Officer)

EX-99

Exhibit 99
PRESS RELEASE FOR IMMEDIATE RELEASE	June 22, 2005
BUTLER NATIONAL CORPORATION ANNOUNCES LATIN AMERICA SUCCESS IN THE SALE AND DELIVERY OF RVSM FOR THE LEARJET 20 SERIES
- AVCON team has 20 Learjet 20 Series RVSM orders booked or pending from Latin America -
Olathe, Kansas June 22, 2005 - Butler National Corporation (OTC Bulletin Board "BUKS" announces AVCON Industries, a wholly-owned subsidiary of Butler National Corporation, has experienced a great deal of success in sales and delivery of Reduced Vertical Separation Minimums (RVSM) for the Learjet 20 Series airplanes in the Latin American market. The AVCON team has upgraded 15 airplanes with AVCON Group Solution. The AVCON team has an additional 5 orders booked or pending. Aric Peters, Director of International Sales, comments, "We are very happy with the success our team has had in the Latin American market. Obtaining RVSM is more challenging for our Latin American customers. Our team has done a great job working with these customers and making sure their needs are taken care of during their trip to the United States. We are firmly entrenched in this market and view ourselves as the market leader of RVSM for the Learjet 20 Series airplanes in Latin America. The team has done a terrific job in educating our customers on the benefits of the quality AVCON RVSM solution. We are building long-term relationships with these customers." Domestic RVSM went into effect on January 20, 2005, and allows airplanes to operate with reduced vertical spacing at altitudes of 29,000 feet through 41,000 feet. The AVCON RVSM turnkey solution requires approximately three weeks downtime for structural and electrical modifications to replace the existing pitot and static system, and to install the approved RVSM equipment. The approved equipment includes reliable IS&S altimeters and AIU, Rosemount probes with static isolation valves for added safety, a 2 inch standby altimeter, and new plumbing/switching. There are approximately 500 Learjet 20 series airplanes in use worldwide. AVCON expects many of these Learjet operators to select AVCON as their RVSM solution. Our Business: About Avcon Industries, Inc. Avcon Industries, Inc., a wholly owned subsidiary of Butler National Corporation, offers modification of customer and company owned business-size aircraft from passenger to freighter configuration, addition of aerial photography capability, and stability enhancing modifications for Learjet, Beechcraft, Cessna, and Dassault Falcon aircraft along with other specialized modifications. Avcon also acquires, modifies and resells Aircraft, principally Learjets. About Butler National Corporation Butler National Corporation operates in the Aerospace and Services business segments. The Aerospace segment focuses on the manufacturing of support systems for "Classic" commercial and military aircraft including the Butler National TSD for Boeing 737 and 747 Classic aircraft, switching equipment for Boeing/Douglas Aircraft, weapon control systems for Boeing Helicopter and performance enhancement structural modifications for Learjet, Cessna, Dassault and Raytheon business aircraft. Services include electronic monitoring of water pumping stations, temporary employee services, Indian gaming services and administrative management services. Forward-Looking Information: The information set forth above may include "forward-looking" information as outlined in the Private Securities Litigation Reform Act of 1995. The Cautionary Statements, filed by the Company as Exhibit 99 to the Company's Annual Report on Form 10-K, are incorporated herein by reference and investors are specifically referred to such Cautionary Statements for discussion of factors, which could affect the Company's operations, and forward-looking statements contained herein.
FOR MORE INFORMATION, CONTACT: Larry W. Franke, President Avcon Industries, Inc. 516 North Oliver, P.O. Box 748 Newton, KS 67114 Jessica A. Bush, Investor Relations Butler National Corporation 19920 W. 161st Street Olathe, KS 66062 Jim Drewitz, Public Relations jdrewitz@comcast.net	Ph (316) 284-2842 Fax (316) 284-2844 Ph (913) 780-9595 Fax (913) 780-5088 Ph (972) 355-6070
For more information, please visit the Company web site: www.butlernational.com - -End-