AD 47-06-11
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
Cracks in the forward doorposts, particularly in the flange section leading from the post to the instrument panel at the base of the windshield and the post itself below the rivet cluster at the top.
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Required Actions
Inspect the forward doorposts for cracks, remove inside fairing between the top and floor to permit thorough inspection. Stop-drill cracks in the flange not over 3/4 inch in length. Replace doorposts with Cessna P/N 0411867-2 and 0411867-3 if cracks exceed 3/4 inch in the flange or any cracks exist in the doorpost structure.
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Compliance Time
next periodic inspection and upon each 100 hours of operation thereafter until revised door posts are installed
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Affected Aircraft
Cessna Model 120 and 140 aircraft serial numbers 8001 to 8799, inclusive
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Federal Register Abstract
Forward Doorposts Cracks
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-06-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-06-11 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes Subject: Forward Doorposts Cracks 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Make: Cessna Aircraft Company Model: 120 | 140 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-06-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-06-11 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-06-11 CESSNA: (Was Service Note 1 of AD-768-4.) Applies Only to 120 and 140 Aircraft Serial Numbers 8001 to 8799, Inclusive. Compliance required at next periodic inspection and upon each 100 hours of operation thereafter until revised door posts are installed. Inspect the forward doorposts for cracks, particularly the flange section leading from the post to the instrument panel at the base of the windshield and the post itself below the rivet cluster at the top. All inside fairing attached to the post between the top and the floor should be removed to permit a thorough inspection. Cracks in the above-mentioned flange not over 3/4 inch in length may be repaired by stop-drilling. If there are longer cracks in the flange or any cracks in the doorpost structure itself, the doorpost should be replaced with the later type post, Cessna P/N 0411867-2 and 0411867-3, in accordance with installation instructions supplied by Cessna. (Cessna Service Letter No. 20 dated October 8, 1946, covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_47-06-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-06-11 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes Subject: Forward Doorposts Cracks 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: 47-06-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-06-11 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 120 and 140 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-06-11 CESSNA: (Was Service Note 1 of AD-768-4.) Applies Only to 120 and 140 Aircraft Serial Numbers 8001 to 8799, Inclusive. Compliance required at next periodic inspection and upon each 100 hours of operation thereafter until revised door posts are installed. Inspect the forward doorposts for cracks, particularly the flange section leading from the post to the instrument panel at the base of the windshield and the post itself below the rivet cluster at the top. All inside fairing attached to the post between the top and the floor should be removed to permit a thorough inspection. Cracks in the above-mentioned flange not over 3/4 inch in length may be repaired by stop-drilling. If there are longer cracks in the flange or any cracks in the doorpost structure itself, the doorpost should be replaced with the later type post, Cessna P/N 0411867-2 and 0411867-3, in accordance with installation instructions supplied by Cessna. (Cessna Service Letter No. 20 dated October 8, 1946, covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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