AD 54-02-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 170 | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| aircraft | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 170A | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| aircraft | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 170B | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| aircraft | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | PA-20 | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| aircraft | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 108 | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| appliance | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 170 | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| appliance | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 170A | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| appliance | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 170B | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| appliance | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | PA-20 | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
| appliance | Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. | 108 | Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis |
Unsafe Condition
The ski dropping down against the mechanical rigger may cause damage to the aircraft structure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the rigging arrangement in accordance with Federal Aircraft Works Drawing No. 11D1077.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
as soon as possible but not later than February 15, 1954
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Universal (Stinson) 108, Cessna 170, 170A, 170B, and Piper PA-20 airplanes equipped with Federal Models AWB-2500, AWB-2500A, or AWB-2100 Wheel Skis.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Wheel Skis
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_54-02-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 54-02-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models... ...Show more Subject: Wheel Skis Status: Current Citation: This information is not available. Citation Publish Date: 12/04/1956 Effective Date: Make: Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. Model: 170 | 170A | 170B | PA-20 | 108 Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: unable to find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 54-02-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 54-02-02 SUBJECT HEADING: Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 54-02-02 FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis. Compliance required as soon as possible but not later than February 15, 1954. To preclude the possibility of the ski dropping down against the mechanical rigger and possible subsequent damage to the aircraft structure, the rigging arrangement must be revised in accordance with Federal Aircraft Works Drawing No. 11D1077. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_54-02-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 54-02-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models... ...Show more Subject: Wheel Skis Status: Current Citation: This information is not available. Citation Publish Date: 12/04/1956 Effective Date: Make: Cessna Aircraft Company | Univair Aircraft Corporation | Piper Aircraft Inc. Model: 170 | 170A | 170B | PA-20 | 108 Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: unable to find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 54-02-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 54-02-02 SUBJECT HEADING: Airworthiness Directives; FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 54-02-02 FEDERAL SKIS: Applies to All Universal (Stinson) 108 and Cessna 170, 170A and 170B Airplanes Equipped With Federal Models AWB-2500 and AWB-2500A Wheel Skis and Piper PA-20 Airplanes Equipped With Federal Model AWB-2100 Wheel Skis. Compliance required as soon as possible but not later than February 15, 1954. To preclude the possibility of the ski dropping down against the mechanical rigger and possible subsequent damage to the aircraft structure, the rigging arrangement must be revised in accordance with Federal Aircraft Works Drawing No. 11D1077. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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