76-10-08 DORNIER GmbH: Amendment 39-2618. Applies to Model DO 28 D and DO 28 D-1 airplanes, certificated in all categories, serial numbers 0401, 4002 through 4035, and 4040 through 4049.
Compliance is required within the next 100 hours time in service after the effective date of this AD, unless already accomplished.
To prevent the possible loss of elevator trim control, replace the elevator trim chain guard with a new chain guard with slip-off protection and install a chain guide in accordance with the "Procedure" section of Dornier Service Bulletin No. 1034-1403, dated February 21, 1972, or an FAA-approved equivalent.
This amendment becomes effective June 3, 1976.