The prototype (G-AFMU), designated L.A.5 Major, first flew on 12 March 1939. During 1943, the Phoenix Works burnt down, destroying the prototype, and causing the Luton Aircraft company to close.
The first test aircraft, G-AFMU, made its maiden flight on 12 March 1939. However, in 1943, a devastating blaze at the Phoenix Works site wiped out the prototype, ultimately resulting in the demise of the Luton Aircraft company.