AD 47-32-01

final rule

Airworthiness Directives; Bell Model 47B Helicopter

AD Number
47-32-01
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 Scotts-Bell 47 Inc 47B Airworthiness Directives; Bell Model 47B Helicopter

Unsafe Condition

Failure of the stabilizer damper frame clamp due to insufficient clamping action allowing loosening of the main rotor mast.

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

Required Actions

Rework the stabilizer damper frame clamp with a 1/16-inch saw cut as specified in Bell Service Bulletin No. 47C7 revised June 12, 1947.

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

Compliance Time

next 100-hour inspection

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

Affected Aircraft

Scotts-Bell 47 Inc Model 47B serial numbers 2 through 13.

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

Federal Register Abstract

Stabilizer Damper Clamp

Applicability Source Text

Show captured applicability text from the source AD
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Details
AD Number:
47-32-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 47B Helicopter
Subject:
Stabilizer Damper Clamp
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Scotts-Bell 47 Inc
Model:
47B
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Superseded AD: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Superseded By: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: 47-32-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   47-32-01

SUBJECT HEADING:   Airworthiness Directives; Bell Model 47B Helicopter

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
47-32-01 BELL: (Was Mandatory Note 1 of AD-1H-1.) Applies Only to Model 47B Serial Numbers 2 Through 13.

Compliance required at next 100-hour inspection.

Rework the stabilizer damper frame clamp with a 1/16-inch saw cut, as shown in Bell Service Bulletin No. 47C7, revised June 12, 1947, in order to permit a clamping action which will prevent the loosening of the subject part of the main rotor mast.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_47-32-01.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
47-32-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 47B Helicopter
Subject:
Stabilizer Damper Clamp
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Scotts-Bell 47 Inc
Model:
47B
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: 47-32-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   47-32-01

SUBJECT HEADING:   Airworthiness Directives; Bell Model 47B Helicopter

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
47-32-01 BELL: (Was Mandatory Note 1 of AD-1H-1.) Applies Only to Model 47B Serial Numbers 2 Through 13.

Compliance required at next 100-hour inspection.

Rework the stabilizer damper frame clamp with a 1/16-inch saw cut, as shown in Bell Service Bulletin No. 47C7, revised June 12, 1947, in order to permit a clamping action which will prevent the loosening of the subject part of the main rotor mast.

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.