AD 71-20-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | American Champion Aircraft Corp. | 7ECA | Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GCAA | Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GCBC | Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7KCAB | Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes |
Unsafe Condition
Structural failure of the lower fuselage longerons due to non-compliance with radius criteria specified in Champion Service Letter No. 96.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 50 hours' time in service after the effective date, visually inspect the lower fuselage longerons per Champion Service Letter No. 96. If they do not meet the radius criteria, install Champion Service Kit 233 or an equivalent modification approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 50 hours' time in service after the effective date of this AD
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Affected Aircraft
American Champion Aircraft Corp. Models 7ECA (specific serial numbers listed in the AD), 7GCAA (specific serial numbers listed in the AD), 7GCBC (specific serial numbers listed in the AD), and 7KCAB (specific serial numbers listed in the AD) airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Lower Fuselage Longeron
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_71-20-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-20-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes Subject: Lower Fuselage Longeron Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/30/1971 Make: American Champion Aircraft Corp. Model: 7ECA | 7GCAA | 7GCBC | 7KCAB Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-20-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1299 AD NUMBER: 71-20-04 SUBJECT HEADING: Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes ACTION: SUMMARY: DATES: Effective September 30, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-20-04 CHAMPION: Amendment 39-1299. Applies to Model 7ECA (Serial Numbers 145, 151, 182, 190, 194, 199, 207, 211, 212, 226, 228, 229, 233, 242, 250, 253, 269, 270, 276, 281 thru 284, 287, 289, 292, 296, 298 thru 303, 306, 308, 316, 317, 321, 325, 328, 335, 344, 353, 354 thru 357, 365, 381, 387, 388, 403, 411, 416, 417, 421, 423, 439, 442, 447, 448, 450, 452, 463, 464, 470, 497, 501, 504, 515, 518, 531, 532, 543, 546, 552, 557, 560, 564, 569), Model 7GCAA (Serial Numbers 6, 8, 15, 44, 88, 91, 104, 106, 111, 112, 114, 125, 128, 141 thru 144, 150, 152, 154, 156 thru 167, 169, 172), Model 7GCBC (Serial Numbers 4, 7, 10, 14, 15, 16, 36, 45, 79, 83, 84, 86 thru 90, 92 thru 95), and Model 7KCAB (Serial Numbers 3, 16 thru 22, 24 thru 37, 39 thru 45, 47, 48, 50, 51, 53, 54, 55, 57, 58, 61, 62 and 64) airplanes. Compliance: Required as indicated, unless already accomplished. To prevent structural failure of the lower longerons, accomplish the following: A) Within the next 50 hours' time in service after the effective date of this AD, visually inspect the lower fuselage longerons in accordance with Champion Service Letter No. 96, dated August 1, 1969, to determine its method of fabrication. B) If the lower fuselage longerons, inspected in accordance with Paragraph A, do not meet the radius criteria specified in Champion Service Letter No. 96, dated August 1, 1969, prior to return to service, install Champion Service Kit 233, or any equivalent modification approved by the Chief, Engineering & Manufacturing Branch, FAA, Central Region. NOTE: Champion Aircraft Corporation is now Bellanca Aircraft Corporation. This amendment becomes effective September 30, 1971. FOOTER:
Document Text
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AD Final Rules - DRS_71-20-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-20-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes Subject: Lower Fuselage Longeron Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/30/1971 Make: American Champion Aircraft Corp. Model: 7ECA | 7GCAA | 7GCBC | 7KCAB 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: 71-20-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1299 AD NUMBER: 71-20-04 SUBJECT HEADING: Airworthiness Directives; Champion Model 7ECA, 7GCAA, 7GCBC and 7KCAB Airplanes ACTION: SUMMARY: DATES: Effective September 30, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-20-04 CHAMPION: Amendment 39-1299. Applies to Model 7ECA (Serial Numbers 145, 151, 182, 190, 194, 199, 207, 211, 212, 226, 228, 229, 233, 242, 250, 253, 269, 270, 276, 281 thru 284, 287, 289, 292, 296, 298 thru 303, 306, 308, 316, 317, 321, 325, 328, 335, 344, 353, 354 thru 357, 365, 381, 387, 388, 403, 411, 416, 417, 421, 423, 439, 442, 447, 448, 450, 452, 463, 464, 470, 497, 501, 504, 515, 518, 531, 532, 543, 546, 552, 557, 560, 564, 569), Model 7GCAA (Serial Numbers 6, 8, 15, 44, 88, 91, 104, 106, 111, 112, 114, 125, 128, 141 thru 144, 150, 152, 154, 156 thru 167, 169, 172), Model 7GCBC (Serial Numbers 4, 7, 10, 14, 15, 16, 36, 45, 79, 83, 84, 86 thru 90, 92 thru 95), and Model 7KCAB (Serial Numbers 3, 16 thru 22, 24 thru 37, 39 thru 45, 47, 48, 50, 51, 53, 54, 55, 57, 58, 61, 62 and 64) airplanes. Compliance: Required as indicated, unless already accomplished. To prevent structural failure of the lower longerons, accomplish the following: A) Within the next 50 hours' time in service after the effective date of this AD, visually inspect the lower fuselage longerons in accordance with Champion Service Letter No. 96, dated August 1, 1969, to determine its method of fabrication. B) If the lower fuselage longerons, inspected in accordance with Paragraph A, do not meet the radius criteria specified in Champion Service Letter No. 96, dated August 1, 1969, prior to return to service, install Champion Service Kit 233, or any equivalent modification approved by the Chief, Engineering & Manufacturing Branch, FAA, Central Region. NOTE: Champion Aircraft Corporation is now Bellanca Aircraft Corporation. This amendment becomes effective September 30, 1971. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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