| AD Number | 93-11-06 | Status | Active |
| Effective Date | July 22, 1993 | Issue Date | Not specified |
| Docket Number | 92-NM-204-AD | Amendment | 39-8596 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Viking Air Limited |
| Model(s) | DHC-7-1 DHC-7-100 DHC-7-101 DHC-7-102 DHC-7-103 |
93-11-06 DE HAVILLAND, INC.: Amendment 39-8596. Docket 92-NM-204-AD.
Applicability: Model DHC-7 series airplanes; serial numbers 3 through 37, inclusive; certificated in any category.
Compliance: Required as indicated, unless accomplished previously.
To prevent structural failure, accomplish the following:
(a) Within 6 months after the effective date of this AD, modify the wing inboard leading edge and support structure (Modification No. 7/1632), in accordance with de Havilland Service Bulletin 7-57-14, dated June 25, 1982.
(b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA, Engine and Propeller Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, New York ACO.
NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the New York ACO.
(c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.
(d) The modification shall be done in accordance with de Havilland Service Bulletin 7-57-14, dated June 25, 1982. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from de Havilland, Inc., Garratt Boulevard, Downsview, Ontario M3K 1Y5, Canada. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Engine and Propeller Directorate, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
(e) This amendment becomes effective on July 22, 1993.