AD 92-14-10
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-7-1 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-100 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-101 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-102 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-103 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
Unsafe Condition
Inadvertent deployment of the ground spoilers and loss of lift.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a functional check of the ground spoiler control system within 15 hours time-in-service or 7 days after April 25, 1983, whichever occurs first. Repeat checks at intervals not exceeding 15 hours time-in-service or 7 days. Incorporate specific modifications (7/2296 or 7/2294) within 6 months after the AD's effective date based on serial numbers and retrofit status.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 6 months after the effective date of this AD for modifications. Functional checks must be done within 15 hours time-in-service or 7 days after April 25, 1983, whichever occurs first, and repeated at intervals not exceeding 15 hours time-in-service or 7 days.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
De Havilland Model DHC-7 series airplanes as listed in Service Bulletin 7-27-46, Revision B, including serial numbers 1 through 93, with specific modifications and retrofit conditions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Ground Spoiler Control System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_92-14-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 92-14-10 Document Type: AD Final Rules Docket Number: 92-NM-32-AD Subject Heading: Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes Subject: Ground Spoiler Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/20/1992 Make: Viking Air Limited Model: DHC-7-1 | DHC-7-100 | DHC-7-101 | DHC-7-102 | DHC-7-103 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 92-14-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 92-NM-32-AD AMENDMENT: 39-8292 AD NUMBER: 92-14-10 SUBJECT HEADING: Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes ACTION: SUMMARY: DATES: Effective August 20, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 92-14-10 DE HAVILLAND, INC.: Amendment 39-8292. Docket No. 92-NM-32-AD. Supersedes AD 83-07-25, Amendment 39-4631. Applicability: Model DHC-7 series airplanes; as listed in de Havilland Service Bulletin 7-27-46, Revision B, dated December 17, 1982, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent inadvertent deployment of the ground spoilers and loss of lift, accomplish the following: (a) Within 15 hours time-in-service or 7 days after April 25, 1983 (the effective date of AD 83-07-25, Amendment 39-4631), whichever occurs first, perform a functional check of the ground spoiler control system, in accordance with the Accomplishment Instructions of de Havilland Alert Service Bulletin 7-27-46, Revision A, dated November 19, 1982; or de Havilland Service Bulletin 7-27-46, Revision B, dated December 17, 1982. (b) If the check required by paragraph (a) of this AD shows incorrect indications, operate the airplane in accordance with the Airplane Flight Manual Minimum Equipment List Supplement No. 4 until the requirements of paragraph (d) of this AD are accomplished. (c) Repeat the functional checks required by paragraph (a) of this AD at intervals not to exceed 15 hours time-in-service, or 7 days, whichever occurs first. (d) Within 6 months after the effective date of this AD, accomplish either paragraph (d)(1) or (d)(2) of this AD, as applicable, in accordance with de Havilland Service Bulletin 7-27- 46, Revision B, dated December 17, 1982: (1) For airplanes having serial numbers 1 through 73, inclusive, that have been retrofitted with Modification No. 7/1732; and airplanes having serial numbers 74 through 83, inclusive, 85, 86, and 89: Incorporate Modification No. 7/2296, in accordance with the service bulletin. (2) For airplanes having serial numbers 1 through 73, inclusive, that have not been retrofitted with Modification No. 7/1732; and airplanes having serial numbers 84, 87, 88, and 90 through 93, inclusive: Incorporate Modification No. 7/2294, in accordance with the service bulletin. (e) Incorporation of Modification No. 7/2296 or 7/2294, as required by paragraph (d)(1) or (d)(2) of this AD, constitutes terminating action for the repetitive functional checks required by paragraph (c) of this AD. (f) An alternative method 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, Engine and Propeller Directorate. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, New York ACO. NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the New York ACO. (g) 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. (h) The functional checks and modifications shall be done in accordance with de Havilland Service Bulletin 7-27-46, Revision A, dated November 19, 1982; and de Havilland Service Bulletin 7-27-46, Revision B, dated December 17, 1982, which contains the following list of effective pages: Page Number Revision Level Date 1-4 B December 17, 1982 5-7 A November 19, 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, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC. (i) This amendment becomes effective on August 20, 1992. FOOTER:
Document Text
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AD Final Rules - DRS_92-14-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 92-14-10 Document Type: AD Final Rules Docket Number: 92-NM-32-AD Subject Heading: Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes Subject: Ground Spoiler Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/20/1992 Make: Viking Air Limited Model: DHC-7-1 | DHC-7-100 | DHC-7-101 | DHC-7-102 | DHC-7-103 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 92-14-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 92-NM-32-AD AMENDMENT: 39-8292 AD NUMBER: 92-14-10 SUBJECT HEADING: Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes ACTION: SUMMARY: DATES: Effective August 20, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 92-14-10 DE HAVILLAND, INC.: Amendment 39-8292. Docket No. 92-NM-32-AD. Supersedes AD 83-07-25, Amendment 39-4631. Applicability: Model DHC-7 series airplanes; as listed in de Havilland Service Bulletin 7-27-46, Revision B, dated December 17, 1982, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent inadvertent deployment of the ground spoilers and loss of lift, accomplish the following: (a) Within 15 hours time-in-service or 7 days after April 25, 1983 (the effective date of AD 83-07-25, Amendment 39-4631), whichever occurs first, perform a functional check of the ground spoiler control system, in accordance with the Accomplishment Instructions of de Havilland Alert Service Bulletin 7-27-46, Revision A, dated November 19, 1982; or de Havilland Service Bulletin 7-27-46, Revision B, dated December 17, 1982. (b) If the check required by paragraph (a) of this AD shows incorrect indications, operate the airplane in accordance with the Airplane Flight Manual Minimum Equipment List Supplement No. 4 until the requirements of paragraph (d) of this AD are accomplished. (c) Repeat the functional checks required by paragraph (a) of this AD at intervals not to exceed 15 hours time-in-service, or 7 days, whichever occurs first. (d) Within 6 months after the effective date of this AD, accomplish either paragraph (d)(1) or (d)(2) of this AD, as applicable, in accordance with de Havilland Service Bulletin 7-27- 46, Revision B, dated December 17, 1982: (1) For airplanes having serial numbers 1 through 73, inclusive, that have been retrofitted with Modification No. 7/1732; and airplanes having serial numbers 74 through 83, inclusive, 85, 86, and 89: Incorporate Modification No. 7/2296, in accordance with the service bulletin. (2) For airplanes having serial numbers 1 through 73, inclusive, that have not been retrofitted with Modification No. 7/1732; and airplanes having serial numbers 84, 87, 88, and 90 through 93, inclusive: Incorporate Modification No. 7/2294, in accordance with the service bulletin. (e) Incorporation of Modification No. 7/2296 or 7/2294, as required by paragraph (d)(1) or (d)(2) of this AD, constitutes terminating action for the repetitive functional checks required by paragraph (c) of this AD. (f) An alternative method 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, Engine and Propeller Directorate. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, New York ACO. NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the New York ACO. (g) 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. (h) The functional checks and modifications shall be done in accordance with de Havilland Service Bulletin 7-27-46, Revision A, dated November 19, 1982; and de Havilland Service Bulletin 7-27-46, Revision B, dated December 17, 1982, which contains the following list of effective pages: Page Number Revision Level Date 1-4 B December 17, 1982 5-7 A November 19, 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, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC. (i) This amendment becomes effective on August 20, 1992. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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