AD 47-21-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sky Enterprises, Inc. | RC-3 | Airworthiness Directives; Republic Model RC-3 Aircraft |
Unsafe Condition
Cracking of the mixture control support bracket at the carburetor air filter housing could result in loss of engine control.
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Required Actions
Inspect mixture control support at carburetor air filter housing for cracking before each flight until the reinforced support bracket is installed. Install the reinforced support bracket within 25 hours of operation after July 1, 1947, but no later than August 1, 1947.
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Compliance Time
Compliance required prior to next flight.
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Affected Aircraft
Republic Model RC-3 Aircraft Serial Numbers 5 Through 303, 305 Through 367, 369 Through 398, 400 Through 445, 448 and 449, 451 Through 454, 456 Through 459, 461 Through 466, 469 and 470, 472, 474, 479 and 482.
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Federal Register Abstract
Mixture Control Support Bracket
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-21-18.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-21-18 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Republic Model RC-3 Aircraft Subject: Mixture Control Support Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Sky Enterprises, Inc. Model: RC-3 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-21-18 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-21-18 SUBJECT HEADING: Airworthiness Directives; Republic Model RC-3 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-21-18 REPUBLIC: (Was Mandatory Note 8 of AD-769-2.) Applies to Model RC-3 Aircraft Serial Numbers 5 Through 303, 305 Through 367, 369 Through 398, 400 Through 445, 448 and 449, 451 Through 454, 456 Through 459, 461 Through 466, 469 and 470, 472, 474, 479 and 482. Compliance required prior to next flight. Prior to each flight until reinforced support bracket is installed, inspect mixture control support at carburetor air filter housing for evidence of cracking. Support bracket must be installed not later than the next 25 hours of operation after July 1, 1947, and in no case later than August 1, 1947. (Republic Seabee Service Bulletin No. 11 dated March 10, 1947, covers this same subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_47-21-18.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-21-18 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Republic Model RC-3 Aircraft Subject: Mixture Control Support Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Sky Enterprises, Inc. Model: RC-3 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-21-18 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-21-18 SUBJECT HEADING: Airworthiness Directives; Republic Model RC-3 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-21-18 REPUBLIC: (Was Mandatory Note 8 of AD-769-2.) Applies to Model RC-3 Aircraft Serial Numbers 5 Through 303, 305 Through 367, 369 Through 398, 400 Through 445, 448 and 449, 451 Through 454, 456 Through 459, 461 Through 466, 469 and 470, 472, 474, 479 and 482. Compliance required prior to next flight. Prior to each flight until reinforced support bracket is installed, inspect mixture control support at carburetor air filter housing for evidence of cracking. Support bracket must be installed not later than the next 25 hours of operation after July 1, 1947, and in no case later than August 1, 1947. (Republic Seabee Service Bulletin No. 11 dated March 10, 1947, covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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