AD 59-14-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING 707-100 Series |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING 707-100 Series |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING 707-100 Series |
Unsafe Condition
Complete loss of hydraulic fluid in the utility hydraulic system caused by the rupture of the aluminum tube assembly in the nose wheel well door-open system.
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Required Actions
Replace the nose wheel door-open aluminum tube assembly 50-6848-45 with corrosion resistant steel tubing 3/8 inch O.D. by 0.028 inch wall thickness.
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Compliance Time
Prior to July 31, 1959
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Affected Aircraft
Boeing 707-100 Series Aircraft Serial Numbers 17586 through 17591, 17609, 17628 through 17637 and 17658 through 17662.
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Federal Register Abstract
Utility Hydraulic System
Applicability Source Text
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AD Final Rules - DRS_59-14-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 59-14-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING 707-100 Series Subject: Utility Hydraulic System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 59-14-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 59-14-01 SUBJECT HEADING: BOEING 707-100 Series ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 59-14-01 BOEING: Applies to the following Boeing 707-100 Series Aircraft Serial Numbers 17586 through 17591, 17609, 17628 through 17637 and 17658 through 17662. Compliance required as indicated. As a result of the complete loss of hydraulic fluid in the utility hydraulic system of a 707- 100 series aircraft caused by the rupture of the aluminum tube assembly in the nose wheel well door-open system, the following modification shall be accomplished. Prior to July 31, 1959, the nose wheel door-open aluminum tube assembly 50-6848-45 shall be replaced with corrosion resistant steel tubing 3/8 inch O.D. by 0.028 inch wall thickness. (Boeing Service Bulletin No. 412 pertains to this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_59-14-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 59-14-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING 707-100 Series Subject: Utility Hydraulic System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body 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: 59-14-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 59-14-01 SUBJECT HEADING: BOEING 707-100 Series ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 59-14-01 BOEING: Applies to the following Boeing 707-100 Series Aircraft Serial Numbers 17586 through 17591, 17609, 17628 through 17637 and 17658 through 17662. Compliance required as indicated. As a result of the complete loss of hydraulic fluid in the utility hydraulic system of a 707- 100 series aircraft caused by the rupture of the aluminum tube assembly in the nose wheel well door-open system, the following modification shall be accomplished. Prior to July 31, 1959, the nose wheel door-open aluminum tube assembly 50-6848-45 shall be replaced with corrosion resistant steel tubing 3/8 inch O.D. by 0.028 inch wall thickness. (Boeing Service Bulletin No. 412 pertains to this same subject.) 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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