AD 51-10-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 190 | Airworthiness Directives; CESSNA Model 190 Airplanes |
Unsafe Condition
Cracking and failures of the cowl mounting ring channels may result in the cowl moving forward into the propeller.
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Required Actions
Inspect cowl mounting channels for cracks every 25 hours of operation. Replace with specified 4130 steel channels (Cessna P/N 0352161, 0352163, 0352163-1) and aluminum alloy reinforcing angles (Cessna P/N 0352146, 0352147-1, 0352147-2, 0352152-5, 0352152-6) until installed. Immediate installation required if cracks are found.
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Compliance Time
Not later than May 1, 1951, and every 25 hours of operation thereafter until new components are installed.
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Affected Aircraft
Cessna Model 190 Aircraft, Serial Numbers 7004 Through 7594.
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Federal Register Abstract
Cowl Mounting Channels
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_51-10-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 51-10-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 190 Airplanes Subject: Cowl Mounting Channels Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: 190 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 51-10-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 51-10-04 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 190 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 51-10-04 CESSNA: Applies to Model 190 Aircraft, Serial Numbers 7004 Through 7594. Inspection required not later than May 1, 1951, and every 25 hours of operation thereafter until new cowl mounting ring channels and channel stiffening angles are installed. Due to cracking and failures of the cowl mounting ring channels which, if undetected, may result in the cowl moving forward into the propeller, the cowl mounting channels must be closely inspected for cracks with particular attention being paid to the sections which bear against the cowl mounting lugs. This inspection must be repeated every 25 hours of operation until the presently installed 1010 steel cowl mounting channels are replaced with 4130 steel cowl mounting channels, Cessna P/N 0352161, 0352163, and 0352163-1, and aluminum alloy cowl channel reinforcing angles, Cessna P/N 0352146, 0352147-1, 0352147-2, 0352152-5, and 0352152-6 are installed. In the event that inspection reveals any indication of cracks, the new cowl mounting channels and reinforcing angles must be installed immediately. (Cessna Service Letter No. 13 dated March 29, 1951, covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_51-10-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 51-10-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 190 Airplanes Subject: Cowl Mounting Channels Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: 190 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: 51-10-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 51-10-04 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 190 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 51-10-04 CESSNA: Applies to Model 190 Aircraft, Serial Numbers 7004 Through 7594. Inspection required not later than May 1, 1951, and every 25 hours of operation thereafter until new cowl mounting ring channels and channel stiffening angles are installed. Due to cracking and failures of the cowl mounting ring channels which, if undetected, may result in the cowl moving forward into the propeller, the cowl mounting channels must be closely inspected for cracks with particular attention being paid to the sections which bear against the cowl mounting lugs. This inspection must be repeated every 25 hours of operation until the presently installed 1010 steel cowl mounting channels are replaced with 4130 steel cowl mounting channels, Cessna P/N 0352161, 0352163, and 0352163-1, and aluminum alloy cowl channel reinforcing angles, Cessna P/N 0352146, 0352147-1, 0352147-2, 0352152-5, and 0352152-6 are installed. In the event that inspection reveals any indication of cracks, the new cowl mounting channels and reinforcing angles must be installed immediately. (Cessna Service Letter No. 13 dated March 29, 1951, covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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