Air Service Improvement Act

[AI summary unavailable — showing source text] Air Service Improvement Act - Amends the Federal Aviation Act of 1958 to direct the Civil Aeronautics Board to consider maximum reliance or competitive market forces in the airline industry as being in the public interest. Limits the Board's present authority to include limitations in certificates to engage in supplemental air transportation. Exempts air carriers which engage in interstate air transportation solely with aircraft below a specified passenger or cargo limit from being required to obtain a certificate of public convenience and necessity if the carrier conforms to such financial responsibility requirements as the Board may impose. Directs the Board, in the event an air carrier holding nonstop authority to engage in scheduled air transportation between any two points does not exercise such authority for at least 180 days during the preceding 12 months, to issue a certificate to an applicant to engage in nonstop air transportation between such points. Directs the Board, following the issuance of such a certificate, to institute a proceeding to determine whether the usused nonstop authority should be revoked. Authorizes specified types of air carriers to apply for certific…