AD 50-41-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | Martin Model 202 Aircraft |
Unsafe Condition
Failure of the emergency brake system hydraulic fuse could result in insufficient hydraulic reservoir capacity for operation of hydraulic units.
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Required Actions
Install a Simmonds P/N G45-6E-402-80 hydraulic fuse or equivalent adjacent to the main line tee in the emergency brake system between the main line and the emergency brake accumulator. The fuse is no longer required if a manually operated charging valve is installed as per AD 51-11-01.
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Compliance Time
not later than December 1, 1950
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Affected Aircraft
Martin-Marietta Corporation Model 202 aircraft
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Federal Register Abstract
Brake System Hydraulic Fuse
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_50-41-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 50-41-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Martin Model 202 Aircraft Subject: Brake System Hydraulic Fuse Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Martin-Marietta Corporation Model: 202 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 50-41-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 50-41-02 SUBJECT HEADING: Martin Model 202 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 50-41-02 MARTIN: Applies to All Model 202 Aircraft. Compliance required not later than December 1, 1950. To maintain a sufficient hydraulic reservoir capacity for the operation of the hydraulic units in the event of failure in the emergency brake system, install a hydraulic fuse (Simmonds P/N G45-6E-402-80) or equivalent, adjacent to the main line tee in the emergency brake system between the main line and the emergency brake accumulator. (Martin 202 Service Bulletin No. 105 covers this same subject.) When the manually operated charging valve is installed in accordance with AD 51-11-01, this hydraulic fuse is no longer required. FOOTER:
Document Text
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AD Final Rules - DRS_50-41-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 50-41-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Martin Model 202 Aircraft Subject: Brake System Hydraulic Fuse Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Martin-Marietta Corporation Model: 202 Product Type: Aircraft Product Subtype: Large 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: 50-41-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 50-41-02 SUBJECT HEADING: Martin Model 202 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 50-41-02 MARTIN: Applies to All Model 202 Aircraft. Compliance required not later than December 1, 1950. To maintain a sufficient hydraulic reservoir capacity for the operation of the hydraulic units in the event of failure in the emergency brake system, install a hydraulic fuse (Simmonds P/N G45-6E-402-80) or equivalent, adjacent to the main line tee in the emergency brake system between the main line and the emergency brake accumulator. (Martin 202 Service Bulletin No. 105 covers this same subject.) When the manually operated charging valve is installed in accordance with AD 51-11-01, this hydraulic fuse is no longer required. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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