AD 49-34-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47D1 | Airworthiness Directives; Bell Model 47D1 Helicopters |
Unsafe Condition
Fatigue failures of the attaching clamps on the ventral fin and at the attaching bolt holes of the fixed tab.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the AN 735 clamps, ventral fin, and fixed tab daily. Replace any parts with cracks prior to the next flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
As soon as possible but not later than September 2, 1949, and daily thereafter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Scotts-Bell 47 Inc Model 47D1 Helicopters, all serial numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Ventral Fin Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_49-34-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 49-34-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 47D1 Helicopters Subject: Ventral Fin Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Scotts-Bell 47 Inc Model: 47D1 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 49-34-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 49-34-02 SUBJECT HEADING: Airworthiness Directives; Bell Model 47D1 Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 49-34-02 BELL: Applies to All Model 47D1 Helicopters. Compliance required as soon as possible but not later than September 2, 1949, and daily thereafter. As a result of several fatigue failures of the attaching clamps on the ventral fin and at the attaching bolt holes of the fixed tab, these parts should be visually inspected daily until a permanent fix is available. If cracks are detected, either in the AN 735 clamps, the ventral fin, or the fixed tab, the effected part should be replaced prior to the next flight. (Bell Service Bulletin No. 70 covers the same subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_49-34-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 49-34-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 47D1 Helicopters Subject: Ventral Fin Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Scotts-Bell 47 Inc Model: 47D1 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: 49-34-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 49-34-02 SUBJECT HEADING: Airworthiness Directives; Bell Model 47D1 Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 49-34-02 BELL: Applies to All Model 47D1 Helicopters. Compliance required as soon as possible but not later than September 2, 1949, and daily thereafter. As a result of several fatigue failures of the attaching clamps on the ventral fin and at the attaching bolt holes of the fixed tab, these parts should be visually inspected daily until a permanent fix is available. If cracks are detected, either in the AN 735 clamps, the ventral fin, or the fixed tab, the effected part should be replaced prior to the next flight. (Bell Service Bulletin No. 70 covers the same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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Related Airworthiness Directives
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