AD 47-05-01

final rule

Airworthiness Directives; CESSNA Model T- 50 Airplanes

AD Number
47-05-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

prior to original certification or, if previously certificated, not later than March 1, 1947

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Fuel Shutoff Valve Handle

Applicability Source Text

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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Superseded AD: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Superseded By: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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.