AD 61-16-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rogers, Burl A. | 15AC | Airworthiness Directives; Aeronca Model 15 Series Aircraft |
| aircraft | Rogers, Burl A. | S15AC | Airworthiness Directives; Aeronca Model 15 Series Aircraft |
Unsafe Condition
Cracks found on the wing lift strut fittings, P/N 5-463-2, particularly in the area of the bolt holes and 90 degrees to the centerline of the bolt holes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect wing lift strut fittings using dye penetrant method and 10-power glass for cracks and dimensional compliance. Replace cracked or oversized fittings prior to further flight. Reinstall fittings with specified finishes and torque bolts to contact. Use approved fittings and bolts for replacements, and perform rework if holes do not align.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours' time in service after August 18, 1961, for aircraft with 1,000 or more hours' time in service (unless inspected in last 25 hours), or at the next periodic inspection after August 18, 1961, for those with less than 1,000 hours. Repeat at each periodic inspection thereafter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Aeronca Model 15 Series Aircraft (15AC | S15AC), all serial numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Lift Strut Fittings
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_61-16-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-16-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Aeronca Model 15 Series Aircraft Subject: Lift Strut Fittings Status: Current Citation: Federal Register: August 8, 1961 Citation Publish Date: 08/08/1961 Effective Date: Make: Rogers, Burl A. Model: 15AC | S15AC Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 61-16-01 CITATION: [Federal Register: August 8, 1961] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-16-01 SUBJECT HEADING: Airworthiness Directives; Aeronca Model 15 Series Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-16-01 AERONCA: Amdt. 320 Part 507 Federal Register August 8, 1961. Applies to All Model 15 Series Aircraft. Compliance required as indicated. As a result of cracks found on the wing lift strut fittings, P/N 5-463-2, the following inspection shall be accomplished. For those aircraft with 1,000 or more hours' time in service, the inspection shall be accomplished within 25 hours' time in service after the effective date of this AD, unless accomplished within the last 25 hours' time in service, and at each periodic inspection thereafter. For those aircraft with less than 1,000 hours' time in service, the inspection shall be accomplished at the next periodic inspection after the effective date of this AD, and at each periodic inspection thereafter. (a) Detach the wing lift strut assembly and remove the upper and lower 1 1/2-inch diameter, 2024 tubular fittings, P/N 5-463-2. Clean, remove the paint and polish lightly with crocus cloth so as to increase the contrast for inspection. Using the dye penetrant method and a 10-power glass, or equivalent, inspect for cracks on the inside and outside of the fitting surfaces, particularly in the area of the bolt holes and 90 degrees to the centerline of the bolt holes. All cracked tubes and all tubes with an outside diameter exceeding 1.515 inches at any point must be replaced prior to further flight. (b) Fittings being reinstalled shall be finished with the following or equivalent: Two coats of zinc chromate primer on the inside and outside of the fitting and finish enamel on the outside of the fitting. The 1/4-inch bolts attaching the fitting to the strut and the 1/2-inch bolt attaching the strut assembly to the airplane shall be torqued only enough to bring the respective parts into contact. The fitting must not be forced out of round. (c) When it is necessary to install new fittings, Aeronca P/N 5-463-2, Champion Aircraft Corporation P/N 1-9280, Prentice Aircraft, Inc. P/N 61-16-1, or FAA approved equivalent may be used. Existing AN 4 bolts, if not damaged, may be reinstalled in holes that match. No elongation of old holes in struts is permissible. (d) The following rework may be used if the holes in new fittings and old struts do not match to allow proper installation. AN5 bolts may be installed in all holes or in any combination. (1) If holes do not match, line-drill the assembled strut and fitting (19/64 inch) and ream to accept an AN 5 bolt. (.3125 inch minimum, .3135 inch maximum diameter.) In the event that portable equipment must be used, drill the hole 19/64 inch and accomplish the final sizing with a tapered hand reamer to assure alignment. (2) Install AN 5-22A bolts each with two AN 960-516 washers, and AN 365-524 nuts in holes that require rework. (e) When Prentice Aircraft, Inc., P/N 61-16-1 or FAA approved equivalent is installed, the repetitive inspections required by this directive may be discontinued. (Aeronca Service Helps and Hints No. 59 and Champion Aircraft Corporation Service Helps and Hints No. 59 cover the same subject.) This directive effective August 18, 1961. Revised November 28, 1961. Revised April 10, 1962. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_61-16-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-16-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Aeronca Model 15 Series Aircraft Subject: Lift Strut Fittings Status: Current Citation: Federal Register: August 8, 1961 Citation Publish Date: 08/08/1961 Effective Date: 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: 61-16-01 CITATION: [Federal Register: August 8, 1961] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-16-01 SUBJECT HEADING: Airworthiness Directives; Aeronca Model 15 Series Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-16-01 AERONCA: Amdt. 320 Part 507 Federal Register August 8, 1961. Applies to All Model 15 Series Aircraft. Compliance required as indicated. As a result of cracks found on the wing lift strut fittings, P/N 5-463-2, the following inspection shall be accomplished. For those aircraft with 1,000 or more hours' time in service, the inspection shall be accomplished within 25 hours' time in service after the effective date of this AD, unless accomplished within the last 25 hours' time in service, and at each periodic inspection thereafter. For those aircraft with less than 1,000 hours' time in service, the inspection shall be accomplished at the next periodic inspection after the effective date of this AD, and at each periodic inspection thereafter. (a) Detach the wing lift strut assembly and remove the upper and lower 1 1/2-inch diameter, 2024 tubular fittings, P/N 5-463-2. Clean, remove the paint and polish lightly with crocus cloth so as to increase the contrast for inspection. Using the dye penetrant method and a 10-power glass, or equivalent, inspect for cracks on the inside and outside of the fitting surfaces, particularly in the area of the bolt holes and 90 degrees to the centerline of the bolt holes. All cracked tubes and all tubes with an outside diameter exceeding 1.515 inches at any point must be replaced prior to further flight. (b) Fittings being reinstalled shall be finished with the following or equivalent: Two coats of zinc chromate primer on the inside and outside of the fitting and finish enamel on the outside of the fitting. The 1/4-inch bolts attaching the fitting to the strut and the 1/2-inch bolt attaching the strut assembly to the airplane shall be torqued only enough to bring the respective parts into contact. The fitting must not be forced out of round. (c) When it is necessary to install new fittings, Aeronca P/N 5-463-2, Champion Aircraft Corporation P/N 1-9280, Prentice Aircraft, Inc. P/N 61-16-1, or FAA approved equivalent may be used. Existing AN 4 bolts, if not damaged, may be reinstalled in holes that match. No elongation of old holes in struts is permissible. (d) The following rework may be used if the holes in new fittings and old struts do not match to allow proper installation. AN5 bolts may be installed in all holes or in any combination. (1) If holes do not match, line-drill the assembled strut and fitting (19/64 inch) and ream to accept an AN 5 bolt. (.3125 inch minimum, .3135 inch maximum diameter.) In the event that portable equipment must be used, drill the hole 19/64 inch and accomplish the final sizing with a tapered hand reamer to assure alignment. (2) Install AN 5-22A bolts each with two AN 960-516 washers, and AN 365-524 nuts in holes that require rework. (e) When Prentice Aircraft, Inc., P/N 61-16-1 or FAA approved equivalent is installed, the repetitive inspections required by this directive may be discontinued. (Aeronca Service Helps and Hints No. 59 and Champion Aircraft Corporation Service Helps and Hints No. 59 cover the same subject.) This directive effective August 18, 1961. Revised November 28, 1961. Revised April 10, 1962. FOOTER:
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Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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