AD 52-04-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | Martin Models 202 and 202A Aircraft |
| aircraft | Martin-Marietta Corporation | 202A | Martin Models 202 and 202A Aircraft |
Unsafe Condition
The lighting circuit protection may not provide adequate panel illumination for necessary flight instruments.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install two separate and individually protected circuits for instrument panel lighting, each providing adequate panel illumination for necessary flight instruments.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
July 1, 1952
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Affected Aircraft
Martin-Marietta Corporation Models 202 and 202A Aircraft
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Lighting Circuit Protection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_52-04-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 52-04-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Martin Models 202 and 202A Aircraft Subject: Lighting Circuit Protection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Martin-Marietta Corporation Model: 202 | 202A Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 52-04-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 52-04-04 SUBJECT HEADING: Martin Models 202 and 202A Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 52-04-04 MARTIN: Applies to All Models 202 and 202A Aircraft. Compliance required not later than July 1, 1952. Provide two separate and individually protected circuits for instrument panel lighting- each circuit to provide adequate panel illumination for necessary flight instruments. (G. L. Martin Co. Service Bulletin 118 and Trans World Airlines Engineering Order 5643 cover this same subject for the 202A). FOOTER:
Document Text
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AD Final Rules - DRS_52-04-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 52-04-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Martin Models 202 and 202A Aircraft Subject: Lighting Circuit Protection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Martin-Marietta Corporation Model: 202 | 202A 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: 52-04-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 52-04-04 SUBJECT HEADING: Martin Models 202 and 202A Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 52-04-04 MARTIN: Applies to All Models 202 and 202A Aircraft. Compliance required not later than July 1, 1952. Provide two separate and individually protected circuits for instrument panel lighting- each circuit to provide adequate panel illumination for necessary flight instruments. (G. L. Martin Co. Service Bulletin 118 and Trans World Airlines Engineering Order 5643 cover this same subject for the 202A). 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.
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