AD 48-49-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Noorduyn Aviation Ltd. | Army UC-64 | Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft |
| aircraft | Noorduyn Aviation Ltd. | Army UC-64A | Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft |
| aircraft | Noorduyn Aviation Ltd. | Army UC-64AS | Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft |
| aircraft | Noorduyn Aviation Ltd. | Army UC-64B | Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft |
Unsafe Condition
Failure of the float wire brace plates, part number 16-31131, could result in structural failure of the float wire brace assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reinforce the float brace wire plates, part number 16-31131, in accordance with Noorduyn Service Bulletin No. E5/44 or Army Air Forces Technical Order No. 01-155CB-13. Equivalent reinforcements may also be used.
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Compliance Time
As soon as possible but not later than February 1, 1949.
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Affected Aircraft
Noorduyn Models Army UC-64, -64A, -64AS, and -64B aircraft equipped or about to be equipped with Edo Model 55-7170A floats.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Float Wire Brace
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_48-49-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 48-49-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft Subject: Float Wire Brace Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Noorduyn Aviation Ltd. Model: Army UC-64 | Army UC-64A | Army UC-64AS | Army UC-64B Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 48-49-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 48-49-02 SUBJECT HEADING: Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 48-49-02 NOORDUYN: Applies to All Army UC-64, -64A, -64AS, and -64B Aircraft. Compliance required as soon as possible but not later than February 1, 1949. On airplanes equipped or about to be equipped with Edo Model 55-7170A floats, the float brace wire plates, P/N 16-31131, must be reinforced in accordance with Noorduyn Service Bulletin No. E5/44, dated August 22, 1944, (obtainable upon request from Canadian Car and Foundry Co., Ltd., Montreal 3, Canada), or Army Air Forces Technical Order No. 01-155CB-13, dated October 9, 1944. Other reinforcements shown to be equivalent to those covered in the Service Bulletin or the Technical Order will also be acceptable. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_48-49-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 48-49-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft Subject: Float Wire Brace Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Noorduyn Aviation Ltd. Model: Army UC-64 | Army UC-64A | Army UC-64AS | Army UC-64B 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: 48-49-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 48-49-02 SUBJECT HEADING: Airworthiness Directives; Noorduyn Models Army UC-64, -64A, -64AS, and -64B Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 48-49-02 NOORDUYN: Applies to All Army UC-64, -64A, -64AS, and -64B Aircraft. Compliance required as soon as possible but not later than February 1, 1949. On airplanes equipped or about to be equipped with Edo Model 55-7170A floats, the float brace wire plates, P/N 16-31131, must be reinforced in accordance with Noorduyn Service Bulletin No. E5/44, dated August 22, 1944, (obtainable upon request from Canadian Car and Foundry Co., Ltd., Montreal 3, Canada), or Army Air Forces Technical Order No. 01-155CB-13, dated October 9, 1944. Other reinforcements shown to be equivalent to those covered in the Service Bulletin or the Technical Order will also be acceptable. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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