AD 73-19-08

final rule

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

AD Number
73-19-08
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

Applicability

TypeManufacturerModelDetails
aircraft Bell Helicopter Textron Canada Limited 206A Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters
aircraft Bell Helicopter Textron Canada Limited 206A-1 (OH-58A) Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters
aircraft Bell Helicopter Textron Canada Limited 206B Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters
aircraft Bell Helicopter Textron Canada Limited 206B-1 Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters

Unsafe Condition

Fatigue cracks in main rotor retention strap fittings P/N 206-010-155-11 and -15, and main rotor retention strap pin P/N 206-010-123-3.

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

Required Actions

Remove and replace retention strap fittings and pins with 1100+ hours total time in service within next 100 hours time in service. Remove and replace fittings and pins with <1100 hours before accumulating 1200 hours total time. Install replacements per maintenance manuals and corrosion protection per Bell Technical Bulletin 206-(04-1)-73-1 or equivalent.

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

Compliance Time

Within the next 100 hours time in service (for items with ≥1100 hours) or prior to accumulating 1200 hours total time in service (for items with <1100 hours).

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

Affected Aircraft

Bell Model 206A, 206B, 206A-1 (OH-58A), and 206B-1 helicopters certificated in all categories.

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

Federal Register Abstract

Strap Fittings and Pins

Applicability Source Text

Show captured applicability text from the source AD
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Details
AD Number:
73-19-08
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters
Subject:
Strap Fittings and Pins
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/15/1973
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: 73-19-08
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-1714

AD NUMBER:   73-19-08

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

ACTION:  

SUMMARY:  

DATES:   Effective September 15, 1973.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
73-19-08 BELL: Amdt. 39-1714. Applies to Bell Model 206A, 206B, 206A-1 and 206B- 1 helicopters certificated in all categories.

Compliance required as indicated.

To prevent possible fatigue cracks in the main rotor retention strap fittings P/N 206-010- 155-11 and -15, and the main rotor retention strap pin, P/N 206-010-123-3, accomplish the following:

a. Remove and replace retention strap fittings, P/N 206-010-155-11 and -15 and pins, P/N 206-010-123-3, with 1100 or more hours total time in service on the effective date of this AD within the next 100 hours time in service.

b. Remove and replace fittings, P/N 206-010-155-11 and -15 and pins, P/N 206- 010-123-3 with less than 1100 hours total time in service on the effective date of this AD, prior to accumulating 1200 hours total time in service.

c. Install replacement fittings and pins in accordance with the appropriate model maintenance and overhaul information manuals and provide corrosion protection as specified in Bell Helicopter Company, Technical Bulletin No. 206-(04-1)-73-1, dated March 9, 1973 or later FAA approved revision or as specified in an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration.

This amendment becomes effective September 15, 1973.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_73-19-08.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
73-19-08
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters
Subject:
Strap Fittings and Pins
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/15/1973
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: 73-19-08
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-1714

AD NUMBER:   73-19-08

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

ACTION:  

SUMMARY:  

DATES:   Effective September 15, 1973.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
73-19-08 BELL: Amdt. 39-1714. Applies to Bell Model 206A, 206B, 206A-1 and 206B- 1 helicopters certificated in all categories.

Compliance required as indicated.

To prevent possible fatigue cracks in the main rotor retention strap fittings P/N 206-010- 155-11 and -15, and the main rotor retention strap pin, P/N 206-010-123-3, accomplish the following:

a. Remove and replace retention strap fittings, P/N 206-010-155-11 and -15 and pins, P/N 206-010-123-3, with 1100 or more hours total time in service on the effective date of this AD within the next 100 hours time in service.

b. Remove and replace fittings, P/N 206-010-155-11 and -15 and pins, P/N 206- 010-123-3 with less than 1100 hours total time in service on the effective date of this AD, prior to accumulating 1200 hours total time in service.

c. Install replacement fittings and pins in accordance with the appropriate model maintenance and overhaul information manuals and provide corrosion protection as specified in Bell Helicopter Company, Technical Bulletin No. 206-(04-1)-73-1, dated March 9, 1973 or later FAA approved revision or as specified in an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration.

This amendment becomes effective September 15, 1973.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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