77-09-06 CANADAIR: Amendment 39-2887. Applies to Canadair CL-215-1A10 Airplanes, Serial Numbers 1001 to 1043 inclusive and 1046, not altered in accordance with Appendix I of Canadair Information Circular 110-CL-215 dated October 27, 1975 or an FAA approved equivalent.
Compliance is required as indicated.
To prevent failure of the lower rudder bearing due to water ingress and subsequent corrosion, accomplish the following:
(a) Prior to 1200 hours in service, and at each 1050 hours in service or one year, whichever occurs first thereafter, inspect for corrosion as outlined in paragraphs "Inspection" and "Rework" in Canadair Information Circular 110-CL-215 dated October 27, 1975 or later approved revision thereto, or an FAA approved equivalent.
(b) Equivalent alterations and inspections must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
(c) Upon request, with substantiating data submitted through an FAA Maintenance Inspector, the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region, may adjust the compliance times specified in this AD.
This amendment becomes effective May 9, 1977.