AD 79-09-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 441 | Airworthiness Directives; CESSNA Model 441 Airplanes |
Unsafe Condition
Improper drainage of the aileron control surfaces could lead to moisture accumulation, potentially causing control surface malfunction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Drill new drain holes in the ailerons per Cessna Propjet Service Information Letter PJ 79-3, or an equivalent method approved by the FAA. Compliance must be completed within 100 hours time-in-service after the effective date.
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Compliance Time
within the next 100 hours time-in-service after the effective date of this AD
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Affected Aircraft
Cessna Model 441 airplanes with serial numbers 441-0001 through 441-0090
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Federal Register Abstract
Aileron Control Surfaces Drainage
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-09-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-09-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 441 Airplanes Subject: Aileron Control Surfaces Drainage Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/07/1979 Make: Cessna Aircraft Company Model: 441 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-09-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3453 AD NUMBER: 79-09-02 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 441 Airplanes ACTION: SUMMARY: DATES: Effective May 7, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-09-02 CESSNA: Amendment 39-3453. Applies to Model 441 (Serial Numbers 441-0001 through 441-0090) airplanes. COMPLIANCE: Required as indicated, unless already accomplished. To assure proper drainage of the aileron control surfaces, within the next 100 hours time-in-service after the effective date of this AD, accomplish the following: A) Incorporate additional drainage of the ailerons by drilling new drain holes in accordance with the instructions provided in Cessna Propjet Service Information Letter PJ 79-3, dated March 5, 1979. B) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. NOTE: The FAA has determined that there is insufficient justification to require mandatory compliance with the elevator portion of Cessna Service Information Letter PJ 79-3. Therefore, this AD is not applicable to elevator drainage improvements provided by that letter. This Amendment becomes effective May 7, 1979. FOOTER:
Document Text
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AD Final Rules - DRS_79-09-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-09-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 441 Airplanes Subject: Aileron Control Surfaces Drainage Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/07/1979 Make: Cessna Aircraft Company Model: 441 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: 79-09-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3453 AD NUMBER: 79-09-02 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 441 Airplanes ACTION: SUMMARY: DATES: Effective May 7, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-09-02 CESSNA: Amendment 39-3453. Applies to Model 441 (Serial Numbers 441-0001 through 441-0090) airplanes. COMPLIANCE: Required as indicated, unless already accomplished. To assure proper drainage of the aileron control surfaces, within the next 100 hours time-in-service after the effective date of this AD, accomplish the following: A) Incorporate additional drainage of the ailerons by drilling new drain holes in accordance with the instructions provided in Cessna Propjet Service Information Letter PJ 79-3, dated March 5, 1979. B) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. NOTE: The FAA has determined that there is insufficient justification to require mandatory compliance with the elevator portion of Cessna Service Information Letter PJ 79-3. Therefore, this AD is not applicable to elevator drainage improvements provided by that letter. This Amendment becomes effective May 7, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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