AD 68-20-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rogers, Burl A. | 15AC | Airworthiness Directives; AERONCA Models 15AC and S15AC Aircraft |
| aircraft | Rogers, Burl A. | S15AC | Airworthiness Directives; AERONCA Models 15AC and S15AC Aircraft |
Unsafe Condition
Collapsing fuel tanks or siphoning of fuel causing forced landings due to fuel exhaustion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect wing fuel cells to ensure they lie flat and follow wing cavity contour; check fuel cell filler caps for security and correct part number (P/N 1-3738 or FAA approved equivalent); inspect vent lines for openness and secure clamping, verify auxiliary vent hole positioning, and ensure main vent line termination faces forward. Record compliance in aircraft log.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time in service after October 3, 1968, and thereafter every 50 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
AERONCA Models 15AC and S15AC, serial numbers 15AC-1 and up.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Fuel Tank Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_68-20-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 68-20-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; AERONCA Models 15AC and S15AC Aircraft Subject: Fuel Tank Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/03/1968 Make: Rogers, Burl A. Model: 15AC | S15AC Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 68-20-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-662 AD NUMBER: 68-20-05 SUBJECT HEADING: Airworthiness Directives; AERONCA Models 15AC and S15AC Aircraft ACTION: SUMMARY: DATES: Effective October 3, 1968. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 68-20-05 AERONCA: Amendment 39-662. Applies to Models 15AC and S15AC, S/N's 15AC-1 and up. To be accomplished within 25 hours in service after the effective date of this AD and thereafter at intervals not to exceed 50 hours time in service from the last inspection. As a result of a number of forced landings due to fuel exhaustion caused by a collapsed fuel tank or siphoning of fuel, accomplish the following: (a) Determine that the wing fuel cells are lying flat and follow the contour of the wing cavity. (b) Inspect fuel cell filler caps for security and identification. Aeronca unvented spring loaded cap, P/N 1-3738 or FAA approved equivalent must be installed. A drawing of P/N 1-3738 is available from Aeronca, Inc., Middletown, Ohio 45042. (c) Determine that vent lines are open to both tanks by removing vent lines at tanks and blowing air through the lines. (d) Determine that the small auxiliary vent holes are located at the same height above the wing upper surface. (e) Determine that the vent line is securely clamped and the vent line hose connection has not deteriorated. (f) Determine that angular cut-off at the termination of the main vent line faces forward. The inspection required by this AD constitutes preventive maintenance and may be accomplished by persons so authorized under FAR 43.3. Aircraft log record entry must be made to reflect AD compliance in accordance with FAR 43.9. This amendment is effective October 3, 1968. FOOTER:
Document Text
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AD Final Rules - DRS_68-20-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 68-20-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; AERONCA Models 15AC and S15AC Aircraft Subject: Fuel Tank Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/03/1968 Make: Rogers, Burl A. Model: 15AC | S15AC Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 68-20-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-662 AD NUMBER: 68-20-05 SUBJECT HEADING: Airworthiness Directives; AERONCA Models 15AC and S15AC Aircraft ACTION: SUMMARY: DATES: Effective October 3, 1968. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 68-20-05 AERONCA: Amendment 39-662. Applies to Models 15AC and S15AC, S/N's 15AC-1 and up. To be accomplished within 25 hours in service after the effective date of this AD and thereafter at intervals not to exceed 50 hours time in service from the last inspection. As a result of a number of forced landings due to fuel exhaustion caused by a collapsed fuel tank or siphoning of fuel, accomplish the following: (a) Determine that the wing fuel cells are lying flat and follow the contour of the wing cavity. (b) Inspect fuel cell filler caps for security and identification. Aeronca unvented spring loaded cap, P/N 1-3738 or FAA approved equivalent must be installed. A drawing of P/N 1-3738 is available from Aeronca, Inc., Middletown, Ohio 45042. (c) Determine that vent lines are open to both tanks by removing vent lines at tanks and blowing air through the lines. (d) Determine that the small auxiliary vent holes are located at the same height above the wing upper surface. (e) Determine that the vent line is securely clamped and the vent line hose connection has not deteriorated. (f) Determine that angular cut-off at the termination of the main vent line faces forward. The inspection required by this AD constitutes preventive maintenance and may be accomplished by persons so authorized under FAR 43.3. Aircraft log record entry must be made to reflect AD compliance in accordance with FAR 43.9. This amendment is effective October 3, 1968. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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