AD 56-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | American Champion Aircraft Corp. | 7EC | Airworthiness Directives; Champion Model 7EC Aircraft |
Unsafe Condition
Cracks at the ears of the front and rear control stick socket castings (P/N 2-705) where the push-pull tube attaches could result in failure of the control system.
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Required Actions
Inspect front and rear control stick socket castings (P/N 2-705) for cracks at the ears. Replace cracked castings. Replace standard AN bolts, nuts, and washers with a clevis bolt AN 24-16 (11/16 grip) and AN 320-4 shear nut.
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Compliance Time
as soon as practicable but not later than April 1, 1956
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Affected Aircraft
American Champion Aircraft Corp. Model 7EC Aircraft, Serial Numbers 300 to 370 Inclusive
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Federal Register Abstract
Control Stick Socket Castings
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_56-04-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-04-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Champion Model 7EC Aircraft Subject: Control Stick Socket Castings Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: American Champion Aircraft Corp. Model: 7EC Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 56-04-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-04-01 SUBJECT HEADING: Airworthiness Directives; Champion Model 7EC Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-04-01 CHAMPION: Applies to Model 7EC Aircraft, Serial Numbers 300 to 370 Inclusive. To be accomplished as soon as practicable but not later than April 1, 1956. Inspect front and rear control stick socket castings, P/N 2-705, for cracks at the ears to which the push-pull tube attaches. If found cracked, the castings should be replaced. If a standard AN bolt, nut and washer are installed, replace with a clevis bolt, AN 24-16, (11/16 grip), and an AN 320-4 shear nut so that excessive loads cannot be placed on the socket ears. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_56-04-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-04-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Champion Model 7EC Aircraft Subject: Control Stick Socket Castings Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: American Champion Aircraft Corp. Model: 7EC 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: 56-04-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-04-01 SUBJECT HEADING: Airworthiness Directives; Champion Model 7EC Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-04-01 CHAMPION: Applies to Model 7EC Aircraft, Serial Numbers 300 to 370 Inclusive. To be accomplished as soon as practicable but not later than April 1, 1956. Inspect front and rear control stick socket castings, P/N 2-705, for cracks at the ears to which the push-pull tube attaches. If found cracked, the castings should be replaced. If a standard AN bolt, nut and washer are installed, replace with a clevis bolt, AN 24-16, (11/16 grip), and an AN 320-4 shear nut so that excessive loads cannot be placed on the socket ears. 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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