AD 73-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206A-1 (OH-58A) | Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B-1 | Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters |
Unsafe Condition
Failure of a pylon support link, P/N 206-031-508-5 or -7, due to bearing inner race exceeding 1.255 inches in diameter or presence of cracks.
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Required Actions
Within ten hours time in service after the effective date, inspect pylon support link assemblies per Bell Service Bulletin 206-01-73-2, Part II. If bearing inner race exceeds 1.255 inches or cracks exist, replace link prior to next flight. Subsequent inspections required every twenty-five hours per Service Bulletin Part III; replace if cracks found.
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Compliance Time
Within ten hours time in service after the effective date of this A.D., unless already accomplished
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Affected Aircraft
Bell Models 206A, 206B, 206A-1 and 206B-1 helicopters equipped with pylon support links P/N 206-031-508-5 or -7
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Federal Register Abstract
Pylon Support Link
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-08-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-08-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters Subject: Pylon Support Link Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/18/1973 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206A-1 (OH-58A) | 206B | 206B-1 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-08-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1622 AD NUMBER: 73-08-03 SUBJECT HEADING: Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters ACTION: SUMMARY: DATES: Effective April 18, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-08-03 BELL: Amdt. 39-1622. Applies to Bell Models 206A, 206B, 206A-1 and 206B-1 helicopters equipped with pylon support links, P/N 206-031-508-5 or -7, certificated in all categories. Compliance required as indicated. To prevent possible failure of a pylon support link, P/N 206-031-508-5 or -7 accomplish the following: (a) Within the next ten hours time in service after the effective date of this A.D., unless already accomplished, inspect the pylon support link assemblies in accordance with Part II of Bell Helicopter Company Service Bulletin No. 206-01-73-2, Revision A, dated March 27, 1973, or later FAA approved revision or in accordance with an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. If the bearing inner race measures more than 1.255 inches in diameter or there is any crack in the link, the link assembly must be replaced prior to next flight. (b) Within twenty-five hours time in service after compliance with paragraph (a) and thereafter at intervals not to exceed twenty-five hours from the last inspection, inspect the pylon support link assemblies in accordance with Part III of Bell Service Bulletin No. 206-01-73-2, Revision A, dated March 27, 1973, or later FAA approved revision or in accordance with an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. If any crack is found, the link assembly must be removed and replaced prior to next flight. (c) This airworthiness directive is no longer applicable when pylon support links, P/N 206-031-589, are installed. This supersedes Amendment 39-1602 (38 F.R. 6377), A.D. 73-05-04. This amendment becomes effective April 18, 1973. FOOTER:
Document Text
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AD Final Rules - DRS_73-08-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-08-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters Subject: Pylon Support Link Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/18/1973 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206A-1 (OH-58A) | 206B | 206B-1 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-08-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1622 AD NUMBER: 73-08-03 SUBJECT HEADING: Airworthiness Directives; Bell Models 206A, 206B, 206A-1 and 206B-1 Helicopters ACTION: SUMMARY: DATES: Effective April 18, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-08-03 BELL: Amdt. 39-1622. Applies to Bell Models 206A, 206B, 206A-1 and 206B-1 helicopters equipped with pylon support links, P/N 206-031-508-5 or -7, certificated in all categories. Compliance required as indicated. To prevent possible failure of a pylon support link, P/N 206-031-508-5 or -7 accomplish the following: (a) Within the next ten hours time in service after the effective date of this A.D., unless already accomplished, inspect the pylon support link assemblies in accordance with Part II of Bell Helicopter Company Service Bulletin No. 206-01-73-2, Revision A, dated March 27, 1973, or later FAA approved revision or in accordance with an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. If the bearing inner race measures more than 1.255 inches in diameter or there is any crack in the link, the link assembly must be replaced prior to next flight. (b) Within twenty-five hours time in service after compliance with paragraph (a) and thereafter at intervals not to exceed twenty-five hours from the last inspection, inspect the pylon support link assemblies in accordance with Part III of Bell Service Bulletin No. 206-01-73-2, Revision A, dated March 27, 1973, or later FAA approved revision or in accordance with an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. If any crack is found, the link assembly must be removed and replaced prior to next flight. (c) This airworthiness directive is no longer applicable when pylon support links, P/N 206-031-589, are installed. This supersedes Amendment 39-1602 (38 F.R. 6377), A.D. 73-05-04. This amendment becomes effective April 18, 1973. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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