AD 56-15-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47H-1 | Airworthiness Directives; Bell Model 47H1 Helicopters |
Unsafe Condition
Failure of a control cable of the synchronized elevator control system can result in loss of control of the helicopter.
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Required Actions
Installation of the fail safe synchronized elevator centering spring, Bell Kit No. 47-2573-1, is mandatory to provide a self-centering device for the synchronized elevator.
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Compliance Time
as soon as possible but not later than August 15, 1956
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Affected Aircraft
Bell Model 47H1 Helicopters, Serial Numbers 1347 Through 1349 and 1351 Through 1371
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Federal Register Abstract
Elevator Control System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_56-15-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-15-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 47H1 Helicopters Subject: Elevator Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Scotts-Bell 47 Inc Model: 47H-1 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 56-15-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-15-03 SUBJECT HEADING: Airworthiness Directives; Bell Model 47H1 Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-15-03 BELL: Applies to Model 47H1 Helicopters, Serial Numbers 1347 Through 1349 and 1351 Through 1371. Compliance required as soon as possible but not later than August 15, 1956. Failure of a control cable of the synchronized elevator control system can result in loss of control of the helicopter. Installation of the fail safe synchronized elevator centering spring, Bell Kit No. 47-2573-1, is mandatory and provides a self-centering device for the synchronized elevator so that control of the helicopter can be maintained in event of elevator control cable failure. (Bell Mandatory Service Bulletin No. 109 dated June 15, 1956, covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_56-15-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-15-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bell Model 47H1 Helicopters Subject: Elevator Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Scotts-Bell 47 Inc Model: 47H-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: 56-15-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-15-03 SUBJECT HEADING: Airworthiness Directives; Bell Model 47H1 Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-15-03 BELL: Applies to Model 47H1 Helicopters, Serial Numbers 1347 Through 1349 and 1351 Through 1371. Compliance required as soon as possible but not later than August 15, 1956. Failure of a control cable of the synchronized elevator control system can result in loss of control of the helicopter. Installation of the fail safe synchronized elevator centering spring, Bell Kit No. 47-2573-1, is mandatory and provides a self-centering device for the synchronized elevator so that control of the helicopter can be maintained in event of elevator control cable failure. (Bell Mandatory Service Bulletin No. 109 dated June 15, 1956, covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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