AD 46-49-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Univair Aircraft Corporation | 415-C | Airworthiness Directives; ERCO Model All 415 Series Airplanes |
| aircraft | Univair Aircraft Corporation | 415-CD | Airworthiness Directives; ERCO Model All 415 Series Airplanes |
| aircraft | Univair Aircraft Corporation | 415-D | Airworthiness Directives; ERCO Model All 415 Series Airplanes |
Unsafe Condition
Failures of the Magnesium Die Cast Nose Wheel (Casting No. 34206) due to increasing number of failures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the magnesium die cast nose wheel with a permanent mold aluminum alloy nose wheel (casting No. 34204). Ensure the replacement wheel, tire, and tube are statically and dynamically balanced before use. Exercise care in removing the old nose wheel to avoid damaging the axle, oleo, and supporting structure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to February 1, 1947
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
ERCO Model All 415 Series Airplanes equipped with Magnesium Die Cast Nose Wheel, Casting No. 34206
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Nose wheel replacement
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_46-49-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-49-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ERCO Model All 415 Series Airplanes Subject: Nose wheel replacement Status: Current Citation: This information is not available Citation Publish Date: Effective Date: Make: Univair Aircraft Corporation Model: 415-C | 415-CD | 415-D Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 46-49-01 CITATION: This information is not available PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-49-01 SUBJECT HEADING: Airworthiness Directives; ERCO Model All 415 Series Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-49-01 ERCO: (Was Mandatory Note 10 of AD-718-6.) Applies to All 415 Series Airplanes Equipped With Magnesium Die Cast Nose Wheel, Casting No. 34206. Compliance required prior to February 1, 1947. Due to an increasing number of failures of the Magnesium Die Cast Nose Wheel (which bears the number 34206 in raised letters), it appears essential that this wheel be replaced by a Permanent Mold Aluminum Alloy Nose Wheel (casting No. 34204) which the manufacturer is making available to all distributors and dealers. The replacement wheel, tire, and tube should be statically and dynamically balanced before use. Care should be exercised in removing the old nose wheel to avoid damaging the axle, oleo, and supporting structure. (Ercoupe Service Department Bulletin No. 16 dated October 28, 1946, covers this same subject in greater detail.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_46-49-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-49-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ERCO Model All 415 Series Airplanes Subject: Nose wheel replacement Status: Current Citation: This information is not available Citation Publish Date: Effective Date: Make: Univair Aircraft Corporation Model: 415-C | 415-CD | 415-D 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: 46-49-01 CITATION: This information is not available PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-49-01 SUBJECT HEADING: Airworthiness Directives; ERCO Model All 415 Series Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-49-01 ERCO: (Was Mandatory Note 10 of AD-718-6.) Applies to All 415 Series Airplanes Equipped With Magnesium Die Cast Nose Wheel, Casting No. 34206. Compliance required prior to February 1, 1947. Due to an increasing number of failures of the Magnesium Die Cast Nose Wheel (which bears the number 34206 in raised letters), it appears essential that this wheel be replaced by a Permanent Mold Aluminum Alloy Nose Wheel (casting No. 34204) which the manufacturer is making available to all distributors and dealers. The replacement wheel, tire, and tube should be statically and dynamically balanced before use. Care should be exercised in removing the old nose wheel to avoid damaging the axle, oleo, and supporting structure. (Ercoupe Service Department Bulletin No. 16 dated October 28, 1946, covers this same subject in greater detail.) 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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