AD 51-11-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Swift Museum Foundation, Inc. | GC-1A | Airworthiness Directives; Temco Models GC-1A and GC-1B |
| aircraft | Swift Museum Foundation, Inc. | GC-1B | Airworthiness Directives; Temco Models GC-1A and GC-1B |
Unsafe Condition
Worn bushings in landing gear pivot points could allow excessive fore and aft travel of the main landing gear exceeding 3/8-inch, leading to potential structural failure or improper operation.
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Required Actions
Inspect bushings in landing gear pivot points at each 100-hour or annual inspection for wear causing over 3/8-inch fore/aft travel. Install spacer in emergency landing gear pull down system at the next 100-hour or annual inspection. Inspect emergency extension system per TEMCO Service Bulletin No. 28 at each inspection.
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Compliance Time
Compliance required as indicated.
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Affected Aircraft
Temco Models GC-1A and GC-1B, all serial numbers.
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Federal Register Abstract
Landing Gear Rework
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_51-11-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 51-11-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Temco Models GC-1A and GC-1B Subject: Landing Gear Rework Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Swift Museum Foundation, Inc. Model: GC-1A | GC-1B Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 51-11-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 51-11-04 SUBJECT HEADING: Airworthiness Directives; Temco Models GC-1A and GC-1B ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 51-11-04 TEMCO: Applies to Models GC-1A and GC-1B and Includes All Serial Numbers. Compliance required as indicated. A. At each 100-hour or annual inspection, all bushings in all landing gear pivot points should be inspected for wear that would allow fore and aft travel of the main landing gear. The total fore and aft travel of the wheels, measured at the center of the axle, due to the cumulative slack in the worn bushing, should not be more than 3/8-inch. This check should be made with the hydraulic pressure relieved on the system and with the landing gear in two positions: (1) Unlocked and in an intermediate position near to, but not in, the full down position; and (2) With the landing gear just entering the wheelwell. If the total fore and aft travel of the wheel of either landing gear is more than 3/8-inch in either position, the landing gear assembly must be repaired as necessary to reduce this travel to less than 3/8-inch. B. At the next 100-hour or annual inspection, whichever occurs first, unless already accomplished, install spacer emergency landing gear pull down system to prevent inadvertent unthreading of drive screw. (TEMCO Service Bulletin No. 28 covered this same subject.) C. At each 100-hour or annual inspection, the emergency extension system should be inspected for proper adjustment in accordance with paragraphs 8, 9 and 12 of TEMCO Service Bulletin No. 28. FOOTER:
Document Text
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AD Final Rules - DRS_51-11-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 51-11-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Temco Models GC-1A and GC-1B Subject: Landing Gear Rework Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Swift Museum Foundation, Inc. Model: GC-1A | GC-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: 51-11-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 51-11-04 SUBJECT HEADING: Airworthiness Directives; Temco Models GC-1A and GC-1B ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 51-11-04 TEMCO: Applies to Models GC-1A and GC-1B and Includes All Serial Numbers. Compliance required as indicated. A. At each 100-hour or annual inspection, all bushings in all landing gear pivot points should be inspected for wear that would allow fore and aft travel of the main landing gear. The total fore and aft travel of the wheels, measured at the center of the axle, due to the cumulative slack in the worn bushing, should not be more than 3/8-inch. This check should be made with the hydraulic pressure relieved on the system and with the landing gear in two positions: (1) Unlocked and in an intermediate position near to, but not in, the full down position; and (2) With the landing gear just entering the wheelwell. If the total fore and aft travel of the wheel of either landing gear is more than 3/8-inch in either position, the landing gear assembly must be repaired as necessary to reduce this travel to less than 3/8-inch. B. At the next 100-hour or annual inspection, whichever occurs first, unless already accomplished, install spacer emergency landing gear pull down system to prevent inadvertent unthreading of drive screw. (TEMCO Service Bulletin No. 28 covered this same subject.) C. At each 100-hour or annual inspection, the emergency extension system should be inspected for proper adjustment in accordance with paragraphs 8, 9 and 12 of TEMCO Service Bulletin No. 28. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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