AD 62-27-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-8-11 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-12 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-21 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-31 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-32 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-33 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-41 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-42 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-43 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-51 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-52 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-53 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-55 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-61 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-61F | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-62 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-62F | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-63 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-63F | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-71 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-71F | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-72 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-72F | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-73 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8-73F | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8F-54 | Airworthiness Directives; DOUGLAS DC-8 |
| aircraft | The Boeing Company | DC-8F-55 | Airworthiness Directives; DOUGLAS DC-8 |
Unsafe Condition
Failure of the upper inboard spar cap structure of the outboard pylons.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect upper inboard spar cap structure of the outboard pylon for cracks using close visual or dye penetrant methods. If cracks are found, repair prior to further flight. Repeat inspections every 500 hours' time in service unless repaired or modified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours' time in service
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
DC-8 Standard Leading Edge Aircraft Powered With Pratt & Whitney JT3C, JT4A or Conway Engines (excluding aircraft with extended leading edge and JT3D powered aircraft with standard leading edge)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Outboard Pylons Spar Cap Structure
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_62-27-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 62-27-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DOUGLAS DC-8 Subject: Outboard Pylons Spar Cap Structure Status: Current Citation: (Federal Register: December 20, 1962) Citation Publish Date: 12/20/1962 Effective Date: Make: The Boeing Company Model: DC-8-11 | DC-8-12 | DC-8-21 | DC-8-31 | DC-8-32 | DC-8-33 | DC-8-41 | DC-8-42 ...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: 62-27-04 CITATION: [Federal Register: December 20, 1962] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 62-27-04 SUBJECT HEADING: Airworthiness Directives; DOUGLAS DC-8 ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 62-27-04 DOUGLAS: Amdt. 520 Part 507 Federal Register December 20, 1962. Applies to DC-8 Standard Leading Edge Aircraft Powered With Pratt & Whitney JT3C, JT4A or Conway Engines. NOTE: Does not apply to aircraft with extended leading edge and to JT3D powered aircraft with standard leading edge. Compliance required as indicated. As a result of failure of the upper inboard spar cap structure of the outboard pylons, accomplish the following: (a) Unless already accomplished within the last 425 hours' time in service, within the next 25 hours' time in service, inspect upper inboard spar cap structure of the outboard pylon for evidence of cracks. Gain access to the area to be inspected by removing the pylon leading edge nose cap between Station YOP 214 and 244 and access doors numbers 110, 113, 411, and 414. Using close visual or dye penetrant methods, inspect the upper inboard cap and adjacent structure for cracks in the area of Station YOP 230 and at the edges of support fitting P/N 3647306-501. (b) If cracks are found, repair in accordance with Douglas Drawing 5776811 or FAA approved equivalent, prior to further flight. (c) If no cracks are found the inspections outlined in (a) must be repeated at periods not to exceed 500 hours' time in service from the last inspection. (d) The repetitive inspections may be discontinued on aircraft repaired in accordance with Douglas Drawing 5776811 and on aircraft modified to incorporate preventive rework accomplished in accordance with FAA engineering approved technical data. (e) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA Western Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. (Douglas DC-8 Alert Service Bulletin A54-33, Revision No. 2, dated January 24, 1964, covers this same subject.) This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated November 21, 1962. Revised June 8, 1963. Revised June 23, 1964. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_62-27-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 62-27-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DOUGLAS DC-8 Subject: Outboard Pylons Spar Cap Structure Status: Current Citation: (Federal Register: December 20, 1962) Citation Publish Date: 12/20/1962 Effective Date: Make: The Boeing Company Model: DC-8-11 | DC-8-12 | DC-8-21 | DC-8-31 | DC-8-32 | DC-8-33 | DC-8-41 | DC-8-42 ...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: 62-27-04 CITATION: [Federal Register: December 20, 1962] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 62-27-04 SUBJECT HEADING: Airworthiness Directives; DOUGLAS DC-8 ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 62-27-04 DOUGLAS: Amdt. 520 Part 507 Federal Register December 20, 1962. Applies to DC-8 Standard Leading Edge Aircraft Powered With Pratt & Whitney JT3C, JT4A or Conway Engines. NOTE: Does not apply to aircraft with extended leading edge and to JT3D powered aircraft with standard leading edge. Compliance required as indicated. As a result of failure of the upper inboard spar cap structure of the outboard pylons, accomplish the following: (a) Unless already accomplished within the last 425 hours' time in service, within the next 25 hours' time in service, inspect upper inboard spar cap structure of the outboard pylon for evidence of cracks. Gain access to the area to be inspected by removing the pylon leading edge nose cap between Station YOP 214 and 244 and access doors numbers 110, 113, 411, and 414. Using close visual or dye penetrant methods, inspect the upper inboard cap and adjacent structure for cracks in the area of Station YOP 230 and at the edges of support fitting P/N 3647306-501. (b) If cracks are found, repair in accordance with Douglas Drawing 5776811 or FAA approved equivalent, prior to further flight. (c) If no cracks are found the inspections outlined in (a) must be repeated at periods not to exceed 500 hours' time in service from the last inspection. (d) The repetitive inspections may be discontinued on aircraft repaired in accordance with Douglas Drawing 5776811 and on aircraft modified to incorporate preventive rework accomplished in accordance with FAA engineering approved technical data. (e) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA Western Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. (Douglas DC-8 Alert Service Bulletin A54-33, Revision No. 2, dated January 24, 1964, covers this same subject.) This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated November 21, 1962. Revised June 8, 1963. Revised June 23, 1964. 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.