AD 47-33-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | C18S | Airworthiness Directives; Beech Models C18S Airplanes |
Unsafe Condition
Fuel leakage between fuel tank liquidometer units and tanks due to inadequate gasket sealing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect gaskets between fuel tank liquidometer units and tanks for fuel leakage. Replace gasket with Armstrong No. 710 gasket (Beech P/N 189631) if leakage is found, without using sealing compound.
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Compliance Time
prior to October 15, 1947, and each 100 hours of operation thereafter
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Affected Aircraft
Beech Models C18S Airplanes as specified in Service Note 2 of AD-757-2
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Federal Register Abstract
Fuel Leakage
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-33-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-33-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Beech Models C18S Airplanes Subject: Fuel Leakage Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Textron Aviation Inc. Model: C18S Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-33-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-33-04 SUBJECT HEADING: Airworthiness Directives; Beech Models C18S Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-33-04 BEECH: (Was Service Note 2 of AD-757-2.) Applies to C18S Aircraft. Compliance required prior to October 15, 1947, and each 100 hours of operation thereafter. Inspect gaskets between fuel tank liquidometer units and tanks for fuel leakage. If leakage is evident, replace gasket with Armstrong No. 710 gasket, Beech P/N 189631, without use of sealing compound. (Installation of 189631 gasket eliminates necessity for continued inspections.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_47-33-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-33-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Beech Models C18S Airplanes Subject: Fuel Leakage Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Textron Aviation Inc. Model: C18S 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: 47-33-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-33-04 SUBJECT HEADING: Airworthiness Directives; Beech Models C18S Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-33-04 BEECH: (Was Service Note 2 of AD-757-2.) Applies to C18S Aircraft. Compliance required prior to October 15, 1947, and each 100 hours of operation thereafter. Inspect gaskets between fuel tank liquidometer units and tanks for fuel leakage. If leakage is evident, replace gasket with Armstrong No. 710 gasket, Beech P/N 189631, without use of sealing compound. (Installation of 189631 gasket eliminates necessity for continued inspections.) 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.
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