AD 47-32-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47B | Airworthiness Directives; Bell Model 47B and 47B3 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47B3 | Airworthiness Directives; Bell Model 47B and 47B3 Helicopters |
Unsafe Condition
The main rotor mast assembly may fail due to fatigue cracking.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the main rotor mast assembly with mast assembly 47-130-100-2.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
at the next 50-hour transmission teardown inspection
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Affected Aircraft
Scotts-Bell 47 Inc Model 47B and 47B3 helicopters
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Rotor Mast Assembly Replacement
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-32-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-32-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 47B and 47B3 Helicopters Subject: Rotor Mast Assembly Replacement Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Scotts-Bell 47 Inc Model: 47B | 47B3 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-32-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-32-10 SUBJECT HEADING: Airworthiness Directives; Bell Model 47B and 47B3 Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-32-10 BELL: (Was Mandatory Note 10 of AD-1H-1.) Applies to Models 47B and 47B3 Helicopters. Compliance required at the next 50-hour transmission teardown inspection. Replace the main rotor mast assembly with mast assembly, 47-130-100-2. (Bell Service Bulletin 47C24, dated June 26, 1947, also covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_47-32-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-32-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 47B and 47B3 Helicopters Subject: Rotor Mast Assembly Replacement Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Scotts-Bell 47 Inc Model: 47B | 47B3 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: 47-32-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-32-10 SUBJECT HEADING: Airworthiness Directives; Bell Model 47B and 47B3 Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-32-10 BELL: (Was Mandatory Note 10 of AD-1H-1.) Applies to Models 47B and 47B3 Helicopters. Compliance required at the next 50-hour transmission teardown inspection. Replace the main rotor mast assembly with mast assembly, 47-130-100-2. (Bell Service Bulletin 47C24, dated June 26, 1947, also covers this same subject.) 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.
Related Airworthiness Directives
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