64-14-04 DORNIER: Amdt. 748 Part 507 Federal Register June 16, 1964. Applies to Model DO-28 A1 Aircraft Serial Numbers 3024 through 3060 and All Model DO-27 Q6 Aircraft Equipped With Landing Flap Actuating Levers Without a Control Grip.
Compliance required within the next 100 hours' time in service after the effective date of this AD.
In order to preclude an unintentional retraction of flaps, modify all levers without control grips by installing a cover in accordance with Dornier Technical Bulletin No. 27-18 dated October 16, 1963, for Model DO-27 Q6 aircraft and Bulletin No. 28-12 dated October 16, 1963, for Model DO-28 A1 aircraft.
(Dornier Technical Bulletins No. 27-18 dated October 16, 1963, and No. 28-12 dated October 16, 1963, cover this same subject.)
This directive effective July 17, 1964.