AD 46-12-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | T-50 | Airworthiness Directives; CESSNA Model AT-17 and UC-78 Series Airplanes |
Unsafe Condition
Fabric on wings and control surfaces may not comply with grade A fabric standards and have a sample breaking strength of at least 56 pounds, and lacing cord may not have a breaking strength of at least 56 pounds when tested double.
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Required Actions
Inspect the fabric on wings and control surfaces to ensure compliance with grade A fabric standards and test samples for a minimum breaking strength of 56 pounds. Check lacing cord breaking strength to ensure it meets at least 56 pounds when tested double.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
immediately
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Affected Aircraft
Cessna Model AT-17 and UC-78 Series airplanes not re-covered with grade A fabric at time of (or subsequent to) original civil certification
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Fabric Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_46-12-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-12-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model AT-17 and UC-78 Series Airplanes Subject: Fabric Inspection 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Date: Make: Cessna Aircraft Company Model: T-50 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 46-12-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-12-01 SUBJECT HEADING: Airworthiness Directives; CESSNA Model AT-17 and UC-78 Series Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-12-01 CESSNA: (Was Mandatory Note 8 of AD-722-5.) Applies Only to AT-17 and UC-78 Series Airplanes. Inspection required immediately. On all AT-17 or UC-78 Series airplanes that have not been re-covered with grade A fabric at time of (or subsequent to) the original civil certification, inspect the fabric on wings and control surfaces to determine that the fabric complies with grade A fabric standards and has a sample breaking strength of at least 56 pounds. The lacing cord should also be checked and should have a breaking strength of at least 56 pounds when tested double. This inspection will require the testing of one or more samples of fabric and cord, the location from which the samples are to be taken and the number necessary will be determined by the CAA representative. FOOTER:
Document Text
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AD Final Rules - DRS_46-12-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-12-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model AT-17 and UC-78 Series Airplanes Subject: Fabric Inspection 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: 46-12-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-12-01 SUBJECT HEADING: Airworthiness Directives; CESSNA Model AT-17 and UC-78 Series Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-12-01 CESSNA: (Was Mandatory Note 8 of AD-722-5.) Applies Only to AT-17 and UC-78 Series Airplanes. Inspection required immediately. On all AT-17 or UC-78 Series airplanes that have not been re-covered with grade A fabric at time of (or subsequent to) the original civil certification, inspect the fabric on wings and control surfaces to determine that the fabric complies with grade A fabric standards and has a sample breaking strength of at least 56 pounds. The lacing cord should also be checked and should have a breaking strength of at least 56 pounds when tested double. This inspection will require the testing of one or more samples of fabric and cord, the location from which the samples are to be taken and the number necessary will be determined by the CAA representative. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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