Exhibit 99

PRESS RELEASE
April 12, 2001
FOR IMMEDIATE RELEASE


Butler National Corporation (OTCBB - BUKS) - NASA SELECTS BUTLER NATIONAL
TSD TO PROTECT BOEING 747 SPACE SHUTTLE CARRYING AIRCRAFT AS AN ALTERNATE
METHOD OF COMPLIANCE WITH AIRWORTHINESS DIRECTIVE 98-20-40 ISSUED AFTER THE
IN-FLIGHT EXPLOSION OF TWA FLIGHT 800 OFF THE COAST OF LONG ISLAND IN 1996.
ALL BOEING 747 CLASSIC AIRCRAFT ARE REQUIRED TO COMPLY WITH THE AD BY
NOVEMBER 2001.

[OLATHE, KANSAS], April 12, 2001 - NASA Aircraft Operations Division
selected the Butler National Transient Suppression Device (TSD) as an
Alternative Method of Compliance (AMOC) for Airworthiness Directive (AD)
98-20-40 for the two NASA Boeing 747 -100 Space Shuttle Carrying Aircraft
(SCA).  The Federal Aviation Administration published the AD after the in-
flight explosion of TWA flight 800 off the coast of Long Island, New York
in 1996.

On April 5, 2001, NASA completed the installation of the Butler National
TSD on one of the Boeing 747 SCA aircraft.  Installation on the second
Boeing 747 SCA aircraft is scheduled for June 2001.

On October 6, 2000, the FAA approved the Butler National TSD for
installation on Boeing 747 "Classic" aircraft with the Honeywell Fuel
Quantity Indicating System (FQIS) (Series 747-100, -200,-300,-SP, and -SR).
The Butler National TSD is designed to prevent potentially dangerous
electrical energy from entering any of the fuel tanks of the 747 aircraft
through the FQIS wiring.

Honeywell, the manufacturer of the Boeing 747 Classic FQIS, issued a
Technical Newsletter No. M23-2193-004-00 recommending the Butler National
Corporation TSD to interface with Honeywell Fuel Quantity Indicating System.
All current Honeywell FQIS components remain in place and are not materially
affected by the Butler National TSD. Flight Crews do not notice any
operational difference.  Minimum maintenance training is required to
install and support the Butler TSD.

Installation of three plug-in TSDs are required on each aircraft and may
be completed in approximately one day. Each TSD contains all passive
components and has multiple concurrent redundant circuits to ensure the
highest protective reliability.  The service life is 30,000 flight hours
or approximately six years under normal use.



Management Comments:

"The NASA TSD installation shows the confidence that the aviation industry
has in Butler National.  This is one more step in Butler National's re-
focused efforts in classic aviation to increase passenger safety and to
enhance the useful lives of aging aircraft.  Butler National expects to
continue to expand its 'Classic' aircraft product line. The Butler National
team is working toward schedules to complete all needed TSD ship sets before
the November compliance date," commented Clark D. Stewart, President.

Our Business:

Butler National Corporation operates in the Aerospace and Services business
segments.  The Aerospace segment focuses on the manufacture of support systems
for "Classic" aircraft including the Boeing 747 TSD for the Honeywell FQIS,
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 and temporary employee
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 a
discussion of factors which could affect the Company's operations and
forward-looking statements contained herein.

FOR MORE INFORMATION, CONTACT:

William A. Griffith, Investor Relations
Ph   (913) 780-9595
Butler National Corporation
Fax (913) 780-5088
19920 W. 161st Street
Olathe, KS 66062