AD 87-25-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Frakes Aviation | G-73 | Airworthiness Directives; GULFSTREAM AMERICAN Model G-73 (Mallard) Series Airplanes |
Unsafe Condition
Jamming of the elevator control system due to improper overlap or misalignment between the elevator control torque tube arm (P/N 109410) and the elevator up stop bolt hex head (P/N G19-5-22).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the overlapping contact surface between the torque tube arm and stop bolt hex head per SB G-73-FA26. If overlap is less than half the hex head dimension or alignment exceeds 1/8 inch, install Frakes Aviation Stop Kit (P/N FA112723K1) before further flight. If within limits, install the stop kit within 100 hours time-in-service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 15 days after the effective date (January 19, 1988) for inspection. Install Stop Kit before further flight if non-compliant, or within 100 hours time-in-service if compliant.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
GULFSTREAM AMERICAN (Frakes Aviation) Model G-73 (Mallard) series airplanes, all serial numbers, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Elevator Control System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_87-25-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 87-25-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GULFSTREAM AMERICAN Model G-73 (Mallard) Series Airplanes Subject: Elevator Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/19/1988 Make: Frakes Aviation Model: G-73 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 87-25-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5790 AD NUMBER: 87-25-08 SUBJECT HEADING: Airworthiness Directives; GULFSTREAM AMERICAN Model G-73 (Mallard) Series Airplanes ACTION: SUMMARY: DATES: Effective January 19, 1988. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 87-25-08 GULFSTREAM AMERICAN (FRAKES AVIATION): Amendment 39-5790. Applies to Model G-73 (Mallard) series airplanes, certificated in any category. Compliance required as indicated, unless previously accomplished. To prevent jamming of the elevator control system, accomplish the following: A. Within 15 days after the effective date of this AD, visually inspect the overlapping contact surface between the elevator control torque tube arm, P/N 109410, and the elevator up stop bolt hex head, P/N G19-5-22, in accordance with Frakes Aviation Service Bulletin G-73-FA26, dated May 1, 1987 (hereinafter referred to as SB G-73-FA26), or later FAA-approved revisions. 1. If the elevator control torque tube arm is not overlapping the stop bolt hex head by one-half or more of the stop bolt hex head dimension, or if the center lines of the stop bolt hex head and the elevator control torque tube arm are not aligned within 1/8 inch (0.125 inch) side to side, prior to further flight install Frakes Aviation Stop Kit, P/N FA112723K1, in accordance with SB G-73-FA26, or later FAA-approved revision. 2. If the elevator control tube arm is overlapping the stop bolt hex head by one-half or more of the stop bolt hex head dimension, and if the center lines of the stop bolt hex head and the elevator control torque tube are aligned within 1/8 inch (0.125 inch) side to side, within the next 100 hours time-in-service install Frakes Aviation Stop Kit, P/N FA112723K1, in accordance with SB G-73-FA26, or later FAA-approved revisions. B. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the requirements of this AD. C. An alternate means of compliance, which provides an acceptable level of safety, may be used when approved by the Manager, Airplane Certification Branch, FAA, Southwest Region. All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to Frakes Aviation, Cleburne Airport, Route 3, Box 229-B, Cleburne, Texas 76031. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or FAA, Southwest Region, 4400 Blue Mound Road, Fort Worth, Texas. This amendment becomes effective January 19, 1988. FOOTER:
Document Text
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AD Final Rules - DRS_87-25-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 87-25-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GULFSTREAM AMERICAN Model G-73 (Mallard) Series Airplanes Subject: Elevator Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/19/1988 Make: Frakes Aviation Model: G-73 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: 87-25-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5790 AD NUMBER: 87-25-08 SUBJECT HEADING: Airworthiness Directives; GULFSTREAM AMERICAN Model G-73 (Mallard) Series Airplanes ACTION: SUMMARY: DATES: Effective January 19, 1988. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 87-25-08 GULFSTREAM AMERICAN (FRAKES AVIATION): Amendment 39-5790. Applies to Model G-73 (Mallard) series airplanes, certificated in any category. Compliance required as indicated, unless previously accomplished. To prevent jamming of the elevator control system, accomplish the following: A. Within 15 days after the effective date of this AD, visually inspect the overlapping contact surface between the elevator control torque tube arm, P/N 109410, and the elevator up stop bolt hex head, P/N G19-5-22, in accordance with Frakes Aviation Service Bulletin G-73-FA26, dated May 1, 1987 (hereinafter referred to as SB G-73-FA26), or later FAA-approved revisions. 1. If the elevator control torque tube arm is not overlapping the stop bolt hex head by one-half or more of the stop bolt hex head dimension, or if the center lines of the stop bolt hex head and the elevator control torque tube arm are not aligned within 1/8 inch (0.125 inch) side to side, prior to further flight install Frakes Aviation Stop Kit, P/N FA112723K1, in accordance with SB G-73-FA26, or later FAA-approved revision. 2. If the elevator control tube arm is overlapping the stop bolt hex head by one-half or more of the stop bolt hex head dimension, and if the center lines of the stop bolt hex head and the elevator control torque tube are aligned within 1/8 inch (0.125 inch) side to side, within the next 100 hours time-in-service install Frakes Aviation Stop Kit, P/N FA112723K1, in accordance with SB G-73-FA26, or later FAA-approved revisions. B. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the requirements of this AD. C. An alternate means of compliance, which provides an acceptable level of safety, may be used when approved by the Manager, Airplane Certification Branch, FAA, Southwest Region. All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to Frakes Aviation, Cleburne Airport, Route 3, Box 229-B, Cleburne, Texas 76031. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or FAA, Southwest Region, 4400 Blue Mound Road, Fort Worth, Texas. This amendment becomes effective January 19, 1988. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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