AD 76-15-03

final rule

Airworthiness Directives; Bell Models 206A, 206B, 206A-1, and 206B-1 Helicopters

AD Number
76-15-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
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

Main rotor blade tension-torsion straps (P/N 206-010-105-3) with serial numbers 15432 through 15472 may have inadequate torsional resistance or stiffness, or be made from certain spools of wire.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Remove straps with serial numbers 15432-15472 within 25 hours' time in service after the effective date. Inspect straps for unacceptable rotation (inadequate torsional resistance) per Service Bulletin 206-76-4 and remove from service before further flight. Ensure replacement straps comply with maintenance manuals.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within the next 25 hours' time in service after the effective date of this AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Bell Models 206A, 206B, 206A-1, and 206B-1 helicopters equipped with main rotor blade tension-torsion straps P/N 206-010-105-3

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Main Rotor Blade Tension-Torsion Straps

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_76-15-03.html
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AD Number:
76-15-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Models 206A, 206B, 206A-1, and 206B-1 Helicopters
Subject:
Main Rotor Blade Tension-Torsion Straps
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/29/1976
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: 76-15-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2675

AD NUMBER:   76-15-03

SUBJECT HEADING:   Airworthiness Directives; Bell Models 206A, 206B, 206A-1, and 206B-1 Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective July 29, 1976.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
76-15-03 BELL: Amendment 39-2675. Applies to Bell Models 206A, 206B, 206A-1, and 206B-1 helicopters, equipped with main rotor blade tension-torsion straps, P/N 206-010-105-3, certificated in all categories.

Compliance required as indicated.

To detect straps with inadequate torsional resistance or stiffness and to remove certain straps possibly made from certain spools of wire from further service, comply with the following.

(a) Within the next 25 hours' time in service after the effective date of this AD, accomplish the following, unless previously accomplished:

(1) Determine the serial number of each strap and remove from service straps having serial numbers 15432 through 15472 in accordance with the pertinent model maintenance manual or an FAA approved equivalent.

(2) Conduct the inspections noted in paragraph II of Bell Helicopter Company Service Bulletin No. 206-76-4, Revision A dated May 11, 1976, or a later approved revision and remove those straps with unacceptable rotation (inadequate torsional resistance) before further flight.

(b) Prior to installing replacement straps or replacement hub assemblies, determine that paragraphs (a)(1) and (a)(2) of this AD have been accomplished. Install replacement straps in accordance with the pertinent model maintenance manual or an FAA approved equivalent.

(c) The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to the Service Manager, Bell Helicopter Company, P. O. Box 482, Fort Worth, Texas 76101. These documents may also be examined at the Office of the Regional Counsel, Southwest Region, FAA, 4400 Blue Mound Road, Fort Worth, Texas, and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD, which includes the incorporated material in full, is maintained by the FAA at its headquarters in Washington, D.C., and at the Southwest Regional Office in Fort Worth, Texas.

This amendment becomes effective July 29, 1976.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_76-15-03.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
76-15-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Models 206A, 206B, 206A-1, and 206B-1 Helicopters
Subject:
Main Rotor Blade Tension-Torsion Straps
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/29/1976
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: 76-15-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2675

AD NUMBER:   76-15-03

SUBJECT HEADING:   Airworthiness Directives; Bell Models 206A, 206B, 206A-1, and 206B-1 Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective July 29, 1976.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
76-15-03 BELL: Amendment 39-2675. Applies to Bell Models 206A, 206B, 206A-1, and 206B-1 helicopters, equipped with main rotor blade tension-torsion straps, P/N 206-010-105-3, certificated in all categories.

Compliance required as indicated.

To detect straps with inadequate torsional resistance or stiffness and to remove certain straps possibly made from certain spools of wire from further service, comply with the following.

(a) Within the next 25 hours' time in service after the effective date of this AD, accomplish the following, unless previously accomplished:

(1) Determine the serial number of each strap and remove from service straps having serial numbers 15432 through 15472 in accordance with the pertinent model maintenance manual or an FAA approved equivalent.

(2) Conduct the inspections noted in paragraph II of Bell Helicopter Company Service Bulletin No. 206-76-4, Revision A dated May 11, 1976, or a later approved revision and remove those straps with unacceptable rotation (inadequate torsional resistance) before further flight.

(b) Prior to installing replacement straps or replacement hub assemblies, determine that paragraphs (a)(1) and (a)(2) of this AD have been accomplished. Install replacement straps in accordance with the pertinent model maintenance manual or an FAA approved equivalent.

(c) The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to the Service Manager, Bell Helicopter Company, P. O. Box 482, Fort Worth, Texas 76101. These documents may also be examined at the Office of the Regional Counsel, Southwest Region, FAA, 4400 Blue Mound Road, Fort Worth, Texas, and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD, which includes the incorporated material in full, is maintained by the FAA at its headquarters in Washington, D.C., and at the Southwest Regional Office in Fort Worth, Texas.

This amendment becomes effective July 29, 1976.

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.