AD 75-09-07
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | True Flight Holdings LLC | AA-1 | Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes |
| aircraft | True Flight Holdings LLC | AA-1A | Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes |
| aircraft | True Flight Holdings LLC | AA-1B | Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes |
Unsafe Condition
Mixture control wire failures due to kinking or misrigging.
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Required Actions
Replace mixture control wires with 500 or more hours time in service; inspect and replace kinked or misrigged mixture control wires. Repeat inspections every 100 hours time in service and replacements every 500 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service after the effective date of this AD
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Affected Aircraft
Grumman American Model AA-1, AA-1A, and AA-1B airplanes certificated in all categories.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Mixture Control Wires
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_75-09-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-09-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes Subject: Mixture Control Wires Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/25/1975 Make: True Flight Holdings LLC Model: AA-1 | AA-1A | AA-1B Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-09-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2180 AD NUMBER: 75-09-07 SUBJECT HEADING: Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes ACTION: SUMMARY: DATES: Effective April 25, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-09-07 GRUMMAN AMERICAN: Amendment 39-2180. Applies to all Model AA-1, AA-1A, and AA-1B airplanes certificated in all categories. Compliance: Required as indicated, unless previously accomplished. The aircraft may be flown to a facility where the inspection and/or replacement can be performed after expiration of the 50 hours time in service after the effective date of this AD. To prevent mixture control wire failures accomplish the following within the next 50 hours time in service after the effective date of this AD, and thereafter as indicated, in accordance with Grumman American Service Bulletin No. 144A or later FAA approved revision or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, Great Lakes Region. A. Replace mixture control wires having 500 or more hours time in service in accordance with the referenced service bulletin. B. Repeat A at intervals not to exceed 500 hours in service. C. Inspect the mixture control in accordance with the referenced service bulletin and replace the mixture control wire if kinked or misrigged. D. Repeat C at intervals not to exceed 100 hours time in service. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Grumman American Aviation Corporation, 318 Bishop Road, Cleveland, Ohio 44143. These documents may also be examined at Great Lakes Regional Office, 2300 East Devon Avenue, Des Plaines, Illinois 60018 and at FAA Headquarters, 800 Independence Avenue, S.W., Washington D.C. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington D.C., and at Great Lakes Region. This amendment becomes effective April 25, 1975. FOOTER:
Document Text
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AD Final Rules - DRS_75-09-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-09-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes Subject: Mixture Control Wires Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/25/1975 Make: True Flight Holdings LLC Model: AA-1 | AA-1A | AA-1B 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: 75-09-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2180 AD NUMBER: 75-09-07 SUBJECT HEADING: Airworthiness Directives; Grumman American Model AA-1, AA-1A, and AA-1B Airplanes ACTION: SUMMARY: DATES: Effective April 25, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-09-07 GRUMMAN AMERICAN: Amendment 39-2180. Applies to all Model AA-1, AA-1A, and AA-1B airplanes certificated in all categories. Compliance: Required as indicated, unless previously accomplished. The aircraft may be flown to a facility where the inspection and/or replacement can be performed after expiration of the 50 hours time in service after the effective date of this AD. To prevent mixture control wire failures accomplish the following within the next 50 hours time in service after the effective date of this AD, and thereafter as indicated, in accordance with Grumman American Service Bulletin No. 144A or later FAA approved revision or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, Great Lakes Region. A. Replace mixture control wires having 500 or more hours time in service in accordance with the referenced service bulletin. B. Repeat A at intervals not to exceed 500 hours in service. C. Inspect the mixture control in accordance with the referenced service bulletin and replace the mixture control wire if kinked or misrigged. D. Repeat C at intervals not to exceed 100 hours time in service. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Grumman American Aviation Corporation, 318 Bishop Road, Cleveland, Ohio 44143. These documents may also be examined at Great Lakes Regional Office, 2300 East Devon Avenue, Des Plaines, Illinois 60018 and at FAA Headquarters, 800 Independence Avenue, S.W., Washington D.C. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington D.C., and at Great Lakes Region. This amendment becomes effective April 25, 1975. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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