AD 47-43-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 120 | Airworthiness Directives; CESSNA Model 120 and 140 Airplanes |
| aircraft | Cessna Aircraft Company | 140 | Airworthiness Directives; CESSNA Model 120 and 140 Airplanes |
Unsafe Condition
Aileron support ribs may exhibit buckling or cracking in the narrow part of the web at the aft edge of the lightening hole and in the top flange just forward of the doubler plate due to high winds when controls are not locked.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect aileron support ribs for buckling or cracking whenever the airplane is tied down in high winds without controls locked and every 100 hours of operation. Replace damaged ribs with Cessna parts 0422200-2 (left) and 0422200-3 (right).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
until Cessna parts 0422200-2 and 0422200-3 are installed
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Model 120 and 140 Aircraft, serial numbers 8001 to 10209 inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Aileron Support Ribs
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-43-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-43-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes Subject: Aileron Support Ribs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: 120 | 140 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-43-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-43-06 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-43-06 CESSNA: (Was Service Note 4 of AD-768-5.) Applies to 120 and 140 Aircraft Serial Numbers 8001 to 10209, Inclusive. Inspection required whenever airplane is tied down in high winds without controls locked and upon each 100 hours of operation until Cessna parts 0422200-2 and 0422200-3 are installed. Inspect the aileron support ribs for indications of buckling or cracking, particularly in the narrow part of the web at the aft edge of the lightening hole and in the top flange just forward of the doubler plate. Any damaged support rib should be replaced with Cessna parts 0422200-2 (left) and 0422200-3 (right) which are made of 0.051-inch material and have a shorter lightening hole. (Cessna Service Letter No. 46 dated July 31, 1947, covers this same subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_47-43-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-43-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes Subject: Aileron Support Ribs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: 120 | 140 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: 47-43-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-43-06 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-43-06 CESSNA: (Was Service Note 4 of AD-768-5.) Applies to 120 and 140 Aircraft Serial Numbers 8001 to 10209, Inclusive. Inspection required whenever airplane is tied down in high winds without controls locked and upon each 100 hours of operation until Cessna parts 0422200-2 and 0422200-3 are installed. Inspect the aileron support ribs for indications of buckling or cracking, particularly in the narrow part of the web at the aft edge of the lightening hole and in the top flange just forward of the doubler plate. Any damaged support rib should be replaced with Cessna parts 0422200-2 (left) and 0422200-3 (right) which are made of 0.051-inch material and have a shorter lightening hole. (Cessna Service Letter No. 46 dated July 31, 1947, covers this same subject.) 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.