AD 67-09-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Allied Ag Cat Productions, Inc. | G-164 | Airworthiness Directives; Grumman Models G-164 and G-164A Airplanes |
| aircraft | Allied Ag Cat Productions, Inc. | G-164A | Airworthiness Directives; Grumman Models G-164 and G-164A Airplanes |
Unsafe Condition
Fouling of the control stick by the surface control lock and inadvertent locking of the right toe brake master cylinder during flight maneuvering.
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Required Actions
Install a tension spring and two 'S' hooks in accordance with Grumman drawing A1521, Revision B, Sheet 2 or equivalent approved by the FAA. Modify the parking brake and stick control lock installation per Grumman AG-CAT Service Bulletin No. 39 or equivalent approved by the FAA. Compliance time for the second modification may be extended with FAA approval.
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Compliance Time
Within the next 25 hours' time in service after April 7, 1966 (for Model G-164, S/N 301-400) and within the next 25 hours' time in service after March 24, 1967 (for all applicable airplanes under section (b)).
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Affected Aircraft
Grumman Models G-164 and G-164A Restricted Category Airplanes, Serial Numbers 301 through 450, and Serial Numbers below 301 modified with parking brake installation and Stick Control Lock Kit P/N A1521-301K.
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Federal Register Abstract
Control Surface Lock
Applicability Source Text
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AD Final Rules - DRS_67-09-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 67-09-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Grumman Models G-164 and G-164A Airplanes Subject: Control Surface Lock Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/24/1967 Make: Allied Ag Cat Productions, Inc. Model: G-164 | G-164A Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 67-09-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-374 AD NUMBER: 67-09-04 SUBJECT HEADING: Airworthiness Directives; Grumman Models G-164 and G-164A Airplanes ACTION: SUMMARY: DATES: Effective March 24, 1967. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 67-09-04 GRUMMAN: Amdt. 39-374 Part 39 Federal Register March 24, 1967. Applies to Models G-164 and G-164A Restricted Category Airplanes, Serial Numbers 301 through 450, and Serial Numbers below 301 Which Have Been Modified to Incorporate Parking Brake Installation and Stick Control Lock Kit P/N A1521-301K. Compliance required as indicated unless already accomplished. To prevent fouling of the control stick by the surface control lock and inadvertent locking of the right toe brake master cylinder during flight maneuvering, accomplish the following: (a) On Model G-164 airplanes, Serial Numbers 301 through 400: Within the next 25 hours' time in service after April 7, 1966, install a tension spring and two "S" hooks in accordance with Grumman Aircraft Engineering Corporation drawing A1521, Revision B, Sheet 2 or equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (b) On all airplanes listed in the applicability statement: Within the next 25 hours' time in service after the effective date of this AD, modify the parking brake and stick control lock installation in accordance with Grumman Aircraft Engineering Corporation AG-CAT Service Bulletin No. 39, February 15, 1967, or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, or equivalent modification approved by the Chief, Engineering & Manufacturing Branch, FAA Eastern Region. (c) Compliance time specified in (b) may be increased upon approval by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, of the appropriate request with substantiating data submitted to an FAA maintenance inspector. This supersedes AD 66-10-02. This directive effective March 24, 1967. FOOTER:
Document Text
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AD Final Rules - DRS_67-09-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 67-09-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Grumman Models G-164 and G-164A Airplanes Subject: Control Surface Lock Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/24/1967 Make: Allied Ag Cat Productions, Inc. Model: G-164 | G-164A 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: 67-09-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-374 AD NUMBER: 67-09-04 SUBJECT HEADING: Airworthiness Directives; Grumman Models G-164 and G-164A Airplanes ACTION: SUMMARY: DATES: Effective March 24, 1967. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 67-09-04 GRUMMAN: Amdt. 39-374 Part 39 Federal Register March 24, 1967. Applies to Models G-164 and G-164A Restricted Category Airplanes, Serial Numbers 301 through 450, and Serial Numbers below 301 Which Have Been Modified to Incorporate Parking Brake Installation and Stick Control Lock Kit P/N A1521-301K. Compliance required as indicated unless already accomplished. To prevent fouling of the control stick by the surface control lock and inadvertent locking of the right toe brake master cylinder during flight maneuvering, accomplish the following: (a) On Model G-164 airplanes, Serial Numbers 301 through 400: Within the next 25 hours' time in service after April 7, 1966, install a tension spring and two "S" hooks in accordance with Grumman Aircraft Engineering Corporation drawing A1521, Revision B, Sheet 2 or equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (b) On all airplanes listed in the applicability statement: Within the next 25 hours' time in service after the effective date of this AD, modify the parking brake and stick control lock installation in accordance with Grumman Aircraft Engineering Corporation AG-CAT Service Bulletin No. 39, February 15, 1967, or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, or equivalent modification approved by the Chief, Engineering & Manufacturing Branch, FAA Eastern Region. (c) Compliance time specified in (b) may be increased upon approval by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, of the appropriate request with substantiating data submitted to an FAA maintenance inspector. This supersedes AD 66-10-02. This directive effective March 24, 1967. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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