AD 68-02-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F (C-9A) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F (C-9B) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-33F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-34 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-34F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-41 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-51 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
| aircraft | The Boeing Company | DC-9-87 (MD-87) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes |
Unsafe Condition
Fatigue failure in the vicinity of the hole near the packing groove at the upper end of the Nose Landing Gear Shock Strut Restrictor Assembly due to exceeding the service life limit of 8,000 landings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reduce the service life limit of Nose Landing Gear Shock Strut Restrictor Support Assembly (P/N 5958435-501 and P/N 5920616-1) to 8,000 landings. Ensure compliance with the new service life limit as of the AD effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Effective February 29, 1968
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MCDONNELL DOUGLAS DC-9 Series airplanes with Nose Landing Gear Shock Strut Restrictor Assembly part numbers 5958435-501 (Models DC-9-11, -12, -13, -14, -15, -15F) and 5920616-1 (Models DC-9-31, -32, -32F).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Nose Gear Shock Strut
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_68-02-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 68-02-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes Subject: Nose Gear Shock Strut Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/29/1968 Make: The Boeing Company Model: DC-9-11 | DC-9-12 | DC-9-13 | DC-9-14 | DC-9-15 | DC-9-15F | DC-9-21 | DC-9-31 | DC-9-32 | DC-9-32 (...Show more 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: 68-02-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-559 AD NUMBER: 68-02-05 SUBJECT HEADING: Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes ACTION: SUMMARY: DATES: Effective February 29, 1968 ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 68-02-05 MCDONNELL DOUGLAS: Amdt. 39-559. Applies to Model DC-9 Series airplanes. Type Certificate Data Sheet No. A6WE, Revision 5, established a service life limit of 26,700 landings for the Nose Landing Gear Shock Strut Restrictor Assembly which is a component of the Nose Landing Gear Cylinder Assembly on DC-9 Series airplanes. The Nose Landing Gear Shock Strut Restrictor Assembly is available under three (3) part numbers. P/N 5958435-501 (Models DC-9-11, -12, -13, -14, -15 and -15F) and P/N 5920616-1 (Models DC-9-31, 32 and -32F) have a 3/8-inch hole near the packing groove at the upper end of the support assembly and are affected by this AD. The third part, P/N 5958435-1 (Models DC-9-11, -12, -13, -14, -15 and -15F) which has no hole, is not affected by this AD. As a result of further fatigue testing, McDonnell Douglas has established a new service life limit of 8,000 landings for P/N 5958435-501 and P/N 5920616-1 due to fatigue failure in the vicinity of the hole. Later revisions of Type Certificate Data Sheet No. A6WE will list the new service life limit for these parts. To prevent fatigue failure: As of the effective date of this AD, the service life limit of P/N 5958435-501 and P/N 5920616-1 Nose Landing Gear Shock Strut Restrictor Support Assembly is 8,000 landings. This amendment becomes effective on February 29, 1968. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_68-02-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 68-02-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes Subject: Nose Gear Shock Strut Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/29/1968 Make: The Boeing Company Model: DC-9-11 | DC-9-12 | DC-9-13 | DC-9-14 | DC-9-15 | DC-9-15F | DC-9-21 | DC-9-31 | DC-9-32 | DC-9-32 (...Show more 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: 68-02-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-559 AD NUMBER: 68-02-05 SUBJECT HEADING: Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes ACTION: SUMMARY: DATES: Effective February 29, 1968 ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 68-02-05 MCDONNELL DOUGLAS: Amdt. 39-559. Applies to Model DC-9 Series airplanes. Type Certificate Data Sheet No. A6WE, Revision 5, established a service life limit of 26,700 landings for the Nose Landing Gear Shock Strut Restrictor Assembly which is a component of the Nose Landing Gear Cylinder Assembly on DC-9 Series airplanes. The Nose Landing Gear Shock Strut Restrictor Assembly is available under three (3) part numbers. P/N 5958435-501 (Models DC-9-11, -12, -13, -14, -15 and -15F) and P/N 5920616-1 (Models DC-9-31, 32 and -32F) have a 3/8-inch hole near the packing groove at the upper end of the support assembly and are affected by this AD. The third part, P/N 5958435-1 (Models DC-9-11, -12, -13, -14, -15 and -15F) which has no hole, is not affected by this AD. As a result of further fatigue testing, McDonnell Douglas has established a new service life limit of 8,000 landings for P/N 5958435-501 and P/N 5920616-1 due to fatigue failure in the vicinity of the hole. Later revisions of Type Certificate Data Sheet No. A6WE will list the new service life limit for these parts. To prevent fatigue failure: As of the effective date of this AD, the service life limit of P/N 5958435-501 and P/N 5920616-1 Nose Landing Gear Shock Strut Restrictor Support Assembly is 8,000 landings. This amendment becomes effective on February 29, 1968. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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