AD 74-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; Bell Model 206A and 206B Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directives; Bell Model 206A and 206B Helicopters |
Unsafe Condition
Failure of the inboard ribs with possible loss of a stabilizer on Model 206A and 206B helicopters, and excessive movement of the horizontal stabilizer.
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Required Actions
Replace any cracked inboard ribs, install a doubler specified in Bell Service Bulletin 206-01-73-7, and install Horizontal Stabilizer Stop Kit P/N 206-704-096-3 following applicable service bulletins.
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Compliance Time
within 100 hours time in service after the effective date of this A.D.
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Affected Aircraft
Bell Model 206A and 206B helicopters, serial numbers 1 through 913 (for inboard ribs issue) and serial numbers 1 through 1251 (for horizontal stabilizer stop kit), equipped with specific part numbers as noted.
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Federal Register Abstract
Horizontal Stabilizer Ribs
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_74-19-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-19-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 206A and 206B Helicopters Subject: Horizontal Stabilizer Ribs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/13/1974 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206B Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 74-19-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1954 AD NUMBER: 74-19-03 SUBJECT HEADING: Airworthiness Directives; Bell Model 206A and 206B Helicopters ACTION: SUMMARY: DATES: Effective October 13, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-19-03 BELL: Amendment 39-1954. Applies to Bell Model 206A and 206B helicopters as noted herein, certificated in all categories. Compliance required within 100 hours time in service after the effective date of this A.D., unless already accomplished. To prevent possible failure of the inboard ribs with possible loss of a stabilizer on Model 206A and 206B helicopters, serial numbers 1 through 913 equipped with horizontal stabilizer, P/N 206-020-119, replace any cracked inboard ribs and modify all inboard ribs by installing a doubler specified in and using the applicable procedures described in Items 3 through 24, Bell Helicopter Company Service Bulletin No. 206-01-73-7, Revision A, dated December 11, 1973 or later FAA approved revision. To prevent excessive movement of the horizontal stabilizer install Horizontal Stabilizer Stop Kit, P/N 206-704-096-3, on Model 206A and 206B helicopters, Serial Numbers 1 through 1251, in accordance with Bell Helicopter Company Service Bulletin No. 206-01-74-1, Revision A, dated May 6, 1974, or later FAA approved revision. This amendment becomes effective October 13, 1974. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_74-19-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-19-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 206A and 206B Helicopters Subject: Horizontal Stabilizer Ribs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/13/1974 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206B 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: 74-19-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1954 AD NUMBER: 74-19-03 SUBJECT HEADING: Airworthiness Directives; Bell Model 206A and 206B Helicopters ACTION: SUMMARY: DATES: Effective October 13, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-19-03 BELL: Amendment 39-1954. Applies to Bell Model 206A and 206B helicopters as noted herein, certificated in all categories. Compliance required within 100 hours time in service after the effective date of this A.D., unless already accomplished. To prevent possible failure of the inboard ribs with possible loss of a stabilizer on Model 206A and 206B helicopters, serial numbers 1 through 913 equipped with horizontal stabilizer, P/N 206-020-119, replace any cracked inboard ribs and modify all inboard ribs by installing a doubler specified in and using the applicable procedures described in Items 3 through 24, Bell Helicopter Company Service Bulletin No. 206-01-73-7, Revision A, dated December 11, 1973 or later FAA approved revision. To prevent excessive movement of the horizontal stabilizer install Horizontal Stabilizer Stop Kit, P/N 206-704-096-3, on Model 206A and 206B helicopters, Serial Numbers 1 through 1251, in accordance with Bell Helicopter Company Service Bulletin No. 206-01-74-1, Revision A, dated May 6, 1974, or later FAA approved revision. This amendment becomes effective October 13, 1974. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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