AD 47-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | T-50 | Airworthiness Directives; CESSNA Model T- 50 Airplanes |
Unsafe Condition
The 'T' shaped fuel shutoff valve handles could be inadvertently operated by the pilot or copilot striking them with their feet, leading to unintended closure of the fuel shutoff valves and engine shutdown.
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Required Actions
Replace the 'T' shaped fuel shutoff valve handles with circular shaped handles by installing a ring formed from 1/4-inch x 0.035 steel tubing with an inside diameter of 3 1/2 inches, welded in place over each handle.
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Compliance Time
prior to original certification or, if previously certificated, not later than March 1, 1947
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Affected Aircraft
Cessna Model T-50 airplanes with fuel shutoff valves in each engine nacelle controlled by 'T' shaped handles below the pilot and copilot seats.
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Federal Register Abstract
Fuel Shutoff Valve Handle
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-05-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-05-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model T- 50 Airplanes Subject: Fuel Shutoff Valve Handle Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: T-50 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-05-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-05-01 SUBJECT HEADING: Airworthiness Directives; CESSNA Model T- 50 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-05-01 CESSNA: (Was Mandatory Note 11 of AD-722-5.) Applies Only to Model T- 50 Airplanes Having a Fuel Shutoff Valve Located in Each Engine Nacelle. These Valves are Controlled by "T" Shaped Handles Located Below the Pilot and Copilot Seats. Compliance required prior to original certification or, if previously certificated, not later than March 1, 1947. To prevent the pilot or copilot from inadvertently operating the fuel shutoff valves by striking the "T" shaped fuel shutoff valve handles with their feet, the "T" shaped handles are to be changed to circular shaped handles. To accomplish this a ring having an inside diameter of 3 1/2 inches is to be formed of 1/4 - inch x 0.035 steel tubing and slid over each "T" shaped handle and welded in place. This will result in a handle of this appearance: Figure 1 47-05-01 FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_47-05-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-05-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model T- 50 Airplanes Subject: Fuel Shutoff Valve Handle Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: T-50 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: 47-05-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-05-01 SUBJECT HEADING: Airworthiness Directives; CESSNA Model T- 50 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-05-01 CESSNA: (Was Mandatory Note 11 of AD-722-5.) Applies Only to Model T- 50 Airplanes Having a Fuel Shutoff Valve Located in Each Engine Nacelle. These Valves are Controlled by "T" Shaped Handles Located Below the Pilot and Copilot Seats. Compliance required prior to original certification or, if previously certificated, not later than March 1, 1947. To prevent the pilot or copilot from inadvertently operating the fuel shutoff valves by striking the "T" shaped fuel shutoff valve handles with their feet, the "T" shaped handles are to be changed to circular shaped handles. To accomplish this a ring having an inside diameter of 3 1/2 inches is to be formed of 1/4 - inch x 0.035 steel tubing and slid over each "T" shaped handle and welded in place. This will result in a handle of this appearance: Figure 1 47-05-01 FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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