AD 47-51-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-6 | Airworthiness Directives; DOUGLAS DC-6 |
| aircraft | The Boeing Company | DC-6A | Airworthiness Directives; DOUGLAS DC-6 |
| aircraft | The Boeing Company | DC-6B | Airworthiness Directives; DOUGLAS DC-6 |
Unsafe Condition
Original Raybestos brake lining, P/N 9520535, may malfunction.
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Required Actions
Replace original Raybestos brake lining P/N 9520535 with Goodyear BL-56 lining P/N 9521091, identified by two yellow dots.
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Compliance Time
not later than next No. 3 inspection
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Affected Aircraft
Douglas DC-6 Serial Numbers 42854 Through 42880; 42882 Through 42888; 42890; and 42891; 43000 Through 43003; 43005 Through 43009; 43055; and 43056.
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Federal Register Abstract
Brake Relining
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-51-15.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-51-15 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DOUGLAS DC-6 Subject: Brake Relining Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: The Boeing Company Model: DC-6 | DC-6A | DC-6B Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-51-15 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-51-15 SUBJECT HEADING: Airworthiness Directives; DOUGLAS DC-6 ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-51-15 DOUGLAS: Applies to DC-6 Serial Numbers 42854 Through 42880; 42882 Through 42888; 42890; and 42891; 43000 Through 43003; 43005 Through 43009; 43055; and 43056. To be accomplished not later than next No. 3 inspection. In order to prevent malfunctioning of the brakes, the original Raybestos brake lining, P/N 9520535 must be replaced with Goodyear BL-56 lining, P/N 9521091. This new lining is identified with two yellow dots. (Douglas Service Bulletin DC-6 No. 1 covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_47-51-15.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-51-15 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DOUGLAS DC-6 Subject: Brake Relining Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: The Boeing Company Model: DC-6 | DC-6A | DC-6B 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: 47-51-15 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-51-15 SUBJECT HEADING: Airworthiness Directives; DOUGLAS DC-6 ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-51-15 DOUGLAS: Applies to DC-6 Serial Numbers 42854 Through 42880; 42882 Through 42888; 42890; and 42891; 43000 Through 43003; 43005 Through 43009; 43055; and 43056. To be accomplished not later than next No. 3 inspection. In order to prevent malfunctioning of the brakes, the original Raybestos brake lining, P/N 9520535 must be replaced with Goodyear BL-56 lining, P/N 9521091. This new lining is identified with two yellow dots. (Douglas Service Bulletin DC-6 No. 1 covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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