91-06-05 CANADAIR, LTD.: Amendment 39-6852. Docket No. 90-NM-186-AD.
Applicability: All Model CL-44D4 and CL-44J series airplanes, certificated in any category.
Compliance: Required as indicated, unless previously accomplished.
To ensure the continuing structural integrity of these airplanes, accomplish the following:
A. Within six months after the effective date of this AD, incorporate a revision into the FAA-approved maintenance inspection program that provides for supplemental maintenance, inspections, replacement, and overhaul requirements of the significant structural items defined in Canadair Document RBD-44-100, "Supplemental Structural Inspection Program," Revision B, dated February 27, 1990. Inspection results, when a crack is detected, must be reported to Canadair.
B. Cracked structure detected during the inspection required by paragraph A. of this AD must be repaired or replaced prior to further flight, in accordance with instructions in Canadair Document RBD-44-100, "Supplemental Structural Inspection Program," Revision B, dated February 27, 1990.
C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA, New England Region.
NOTE: The request should be submitted directly to the Manager, New York Aircraft Certification Office, ANE-170, and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the Manager, New York ACO.
D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.
All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to Canadair, Ltd., P.O. Box 6087, Station A, Montreal,Quebec H3C 3G9, Canada. Copies may be inspected at the FAA, Transport Airplane Directorate, Northwest Mountain Region, 1601 Lind Avenue S.W., Renton, Washington; or at the FAA, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York.
This amendment (39-6852, AD 91-06-05) becomes effective on April 8, 1991.