AD 85-26-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | SOCATA - Groupe Aerospatiale | GA-7 | Airworthiness Directives; GULFSTREAM AEROSPACE Model GA-7 (Cougar) Airplanes |
Unsafe Condition
Failure of the rudder torque tube due to corrosion or cracks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the rudder torque tube for corrosion or cracks. If cracks or excessive corrosion are found, replace the rudder torque tube P/N 7CS10500-11. If no cracks and only light surface corrosion exist, apply corrosion protection treatment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 50 hours time-in-service after the effective date of this AD unless previously accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
GULFSTREAM AEROSPACE Model GA-7 (Cougar) airplanes, all serial numbers, certified in any category
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Rudder Torque Tube
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_85-26-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-26-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GULFSTREAM AEROSPACE Model GA-7 (Cougar) Airplanes Subject: Rudder Torque Tube Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/03/1986 Make: SOCATA - Groupe Aerospatiale Model: GA-7 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 85-26-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5203 AD NUMBER: 85-26-05 SUBJECT HEADING: Airworthiness Directives; GULFSTREAM AEROSPACE Model GA-7 (Cougar) Airplanes ACTION: SUMMARY: DATES: Effective January 3, 1986. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-26-05 GULFSTREAM AEROSPACE: Amendment 39-5203. Applies to Model GA-7 (Cougar) airplanes, all serial numbers, certified in any category. COMPLIANCE: Required within 50 hours time-in-service after the effective date of this AD unless previously accomplished. To prevent failure of the rudder torque tube, accomplish Paragraphs (a), (b) and (c) of the following AD in accordance with Gulfstream Aerospace Corporation (GAC) Service Bulletin (S/B) No. ME-21, dated November 1, 1985: (a) Visually inspect the rudder torque tube for corrosion or cracks. (b) If any cracks or excessive corrosion is found, prior to further flight replace the rudder torque tube, P/N 7CS10500-11. (c) If no cracks are found and no corrosion or only light surface corrosion exists on the rudder torque tube, prior to further flight apply corrosion protection treatment to the torque tube. (d) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished. (e) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Atlanta Aircraft Certification Office, 1075 Inner Loop Road, College Park, Georgia 30337; telephone (404) 763-7428. All persons affected by this directive may obtain copies of the documents referred to herein upon request to Gulfstream Aerospace Corporation, P.0. Box 2206, Savannah, Georgia 31402- 2206, or the FAA, Rules Docket, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment becomes effective on January 3, 1986. FOOTER:
Document Text
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AD Final Rules - DRS_85-26-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-26-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GULFSTREAM AEROSPACE Model GA-7 (Cougar) Airplanes Subject: Rudder Torque Tube Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/03/1986 Make: SOCATA - Groupe Aerospatiale Model: GA-7 Product Type: Aircraft Product Subtype: Small 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: 85-26-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5203 AD NUMBER: 85-26-05 SUBJECT HEADING: Airworthiness Directives; GULFSTREAM AEROSPACE Model GA-7 (Cougar) Airplanes ACTION: SUMMARY: DATES: Effective January 3, 1986. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-26-05 GULFSTREAM AEROSPACE: Amendment 39-5203. Applies to Model GA-7 (Cougar) airplanes, all serial numbers, certified in any category. COMPLIANCE: Required within 50 hours time-in-service after the effective date of this AD unless previously accomplished. To prevent failure of the rudder torque tube, accomplish Paragraphs (a), (b) and (c) of the following AD in accordance with Gulfstream Aerospace Corporation (GAC) Service Bulletin (S/B) No. ME-21, dated November 1, 1985: (a) Visually inspect the rudder torque tube for corrosion or cracks. (b) If any cracks or excessive corrosion is found, prior to further flight replace the rudder torque tube, P/N 7CS10500-11. (c) If no cracks are found and no corrosion or only light surface corrosion exists on the rudder torque tube, prior to further flight apply corrosion protection treatment to the torque tube. (d) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished. (e) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Atlanta Aircraft Certification Office, 1075 Inner Loop Road, College Park, Georgia 30337; telephone (404) 763-7428. All persons affected by this directive may obtain copies of the documents referred to herein upon request to Gulfstream Aerospace Corporation, P.0. Box 2206, Savannah, Georgia 31402- 2206, or the FAA, Rules Docket, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment becomes effective on January 3, 1986. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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