AD 70-10-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-300 Series | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 720 Series | BOEING Model 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 720B Series | BOEING Model 707 and 720 Series Airplanes |
Unsafe Condition
Cracks in crank arm 65-7195 and pulley bracket 69-1087 and insufficient cable tension in the emergency extension system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect crank arm 65-7195 and pulley bracket 69-1087 for cracks, measure cable tension per maintenance manual instructions, and modify airplanes with Boeing Service Bulletins 2108 Revision I or 2108A within 2500 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 200 hours time in service after the effective date of this AD and after each emergency extension for inspections; modifications must be completed within 2500 hours time in service after effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 707 and 720 series airplanes listed in Boeing Service Bulletin 2108 Revision I dated 28 December 1965.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Emergency Extension Crank Arm
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-10-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-10-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707 and 720 Series Airplanes Subject: Emergency Extension Crank Arm Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/16/1970 Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 707-300 Series | 707-300B S...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: 70-10-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-989 AD NUMBER: 70-10-05 SUBJECT HEADING: BOEING Model 707 and 720 Series Airplanes ACTION: SUMMARY: DATES: Effective May 16, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-10-05 BOEING: Amdt. 39-989. Applies to Model 707 and 720 series airplanes listed in Boeing Service Bulletin 2108 Revision I dated 28 December 1965. Within 200 hours time in service after the effective date of this AD and after each emergency extension, inspect crank arm 65-7195 and pulley bracket 69-1087 for cracks and measure cable tension in accordance with instructions contained in the 707/720 maintenance manual. Inspections may be discontinued after modification indicated below is accomplished. Within 2500 hours time in service after effective date of this AD, unless already accomplished, modify all airplanes in accordance with Boeing Service Bulletins 2108 Revision I, dated 28 December 1965 and 2108A, dated 24 May 1965, or later FAA approved revisions to these service bulletins or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA, Western Region. This amendment becomes effective May 16, 1970. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_70-10-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-10-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707 and 720 Series Airplanes Subject: Emergency Extension Crank Arm Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/16/1970 Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 707-300 Series | 707-300B S...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: 70-10-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-989 AD NUMBER: 70-10-05 SUBJECT HEADING: BOEING Model 707 and 720 Series Airplanes ACTION: SUMMARY: DATES: Effective May 16, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-10-05 BOEING: Amdt. 39-989. Applies to Model 707 and 720 series airplanes listed in Boeing Service Bulletin 2108 Revision I dated 28 December 1965. Within 200 hours time in service after the effective date of this AD and after each emergency extension, inspect crank arm 65-7195 and pulley bracket 69-1087 for cracks and measure cable tension in accordance with instructions contained in the 707/720 maintenance manual. Inspections may be discontinued after modification indicated below is accomplished. Within 2500 hours time in service after effective date of this AD, unless already accomplished, modify all airplanes in accordance with Boeing Service Bulletins 2108 Revision I, dated 28 December 1965 and 2108A, dated 24 May 1965, or later FAA approved revisions to these service bulletins or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA, Western Region. This amendment becomes effective May 16, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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