AD 49-15-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | American Champion Aircraft Corp. | 11AC | Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft |
| aircraft | American Champion Aircraft Corp. | 11BC | Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft |
| aircraft | American Champion Aircraft Corp. | S11AC | Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft |
Unsafe Condition
Seat belt anchorage failure during crash landings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Bolt rear sliding lugs to slide tube with 3/16- or 1/4-inch diameter AN bolts if seat adjustment is not needed. Install two 1/8 7 x 19 steel snare cables around seat frame cross tube and fuselage tube if seat remains adjustable, using approved cable clamps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than July 1, 1949
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Aeronca Model 11AC, S11AC, and 11BC aircraft
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Seat Anchorage Rework
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_49-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 49-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft Subject: Seat Anchorage Rework Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: American Champion Aircraft Corp. Model: 11AC | 11BC | S11AC Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 49-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 49-15-01 SUBJECT HEADING: Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 49-15-01 AERONCA: Applies to All Models 11AC, S11AC and 11BC Aircraft. To be accomplished not later than July 1, 1949. In order to prevent the seat belt anchorage from failing during crash landings, it has been found necessary to modify the seat installation as follows: 1. If there is no need for an adjustable seat, the rear sliding lugs on each side of the seat should be bolted to the slide tube using 3/16- or 1/4-inch diameter AN bolts. 2. If the seat is to remain adjustable, two 1/8 7 x 19 steel snare cables looped around each end of the seat frame cross tube and the lower end of the vertical slide fuselage tube located aft of the seat should be installed so that they will be taut with the seat in the most forward position. Any approved type cable clamp may be used for joining the ends of the cable. (Aeronca Helps and Hints No. 42 covers this same subject.) This supersedes AD 49-13-01. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_49-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 49-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft Subject: Seat Anchorage Rework Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: American Champion Aircraft Corp. Model: 11AC | 11BC | S11AC 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: 49-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 49-15-01 SUBJECT HEADING: Airworthiness Directives; Aeronca Model 11AC, S11AC and 11BC Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 49-15-01 AERONCA: Applies to All Models 11AC, S11AC and 11BC Aircraft. To be accomplished not later than July 1, 1949. In order to prevent the seat belt anchorage from failing during crash landings, it has been found necessary to modify the seat installation as follows: 1. If there is no need for an adjustable seat, the rear sliding lugs on each side of the seat should be bolted to the slide tube using 3/16- or 1/4-inch diameter AN bolts. 2. If the seat is to remain adjustable, two 1/8 7 x 19 steel snare cables looped around each end of the seat frame cross tube and the lower end of the vertical slide fuselage tube located aft of the seat should be installed so that they will be taut with the seat in the most forward position. Any approved type cable clamp may be used for joining the ends of the cable. (Aeronca Helps and Hints No. 42 covers this same subject.) This supersedes AD 49-13-01. 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.
Related Airworthiness Directives
2000-25-02 R1
final ruleAirworthiness Directives; American Champion Aircraft Corporation 7, 8, and 11 Series Airplanes
Unsafe Condition: Continued operation with damaged wood wing spars could progress to in-flight structural failure of the wing with consequent loss of control of the airplane.
47-20-01
final ruleAirworthiness Directives; Bellanca (Aeronca) Model 7AC, 7BCM, and 11AC Aircraft
Unsafe Condition: Accumulations of water and foreign matter in the metal gascolator bowl can obstruct fuel flow and lead to engine failure.
79-07-02
final ruleAirworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979
Unsafe Condition: The Exide AC 78M and Willard W 78M batteries manufactured between December 1978 and February 1979, identified by N-8, A-9, or B-9 stamped on terminal posts, may fail due to internal short circuits ...
48-08-02
final ruleAirworthiness Directives; Aeronca, Champion and Silvaire Model 11 Series, Champion (Aeronca) 7 Series, and Silvaire (Luscombe) 8 Series Aircraft
Unsafe Condition: Fatigue cracks in the wheel flanges of Cleveland Model 6:00 DMB Wheels, Assembly No. C-38500, could result in wheel failure.
