AD 79-24-04 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes |
| aircraft | The Boeing Company | 720 Series | BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes |
| aircraft | The Boeing Company | 720B Series | BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes |
Unsafe Condition
Cracks in the horizontal stabilizer center section rear spar upper chord.
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Required Actions
Visually inspect the horizontal stabilizer center section rear spar upper chord in accordance with Boeing Service Bulletin 3332, Rev. 2, or approved method. Repair cracks prior to further flight or fly to maintenance base under FAR 21.197.
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Compliance Time
Within the next number of landings shown in Table I, if not already accomplished within the last same number of landings, and at repeat intervals not to exceed those specified.
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Affected Aircraft
Boeing 707-100, 707-100B, 707-200, and Boeing 720, 720B series airplanes.
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Federal Register Abstract
Horizontal Stabilizer
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-24-04_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-24-04 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes Subject: Horizontal Stabilizer Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/04/1983 Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 720 Series | 720B Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-24-04 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4587 AD NUMBER: 79-24-04 R1 SUBJECT HEADING: BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes ACTION: SUMMARY: DATES: Effective April 4, 1983. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-24-04 R1 BOEING: Amendment 39-3617 as amended by Amendment 39-4587. Applies to all Boeing 707-100, 707-100B, 707-200, and Boeing 720, 720B series airplanes. Within the next number of landings shown in Table I, if not already accomplished within the last same number of landings, and at repeat intervals not to exceed those specified, visually inspect the horizontal stabilizer center section rear spar upper chord in accordance with page 9, paragraph IIIB, Boeing Service Bulletin 3332, Rev. 2, or in a manner approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. If cracks are found, repair prior to further flight in a manner approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, except that airplanes may be flown to a maintenance base for repairs or replacement in accordance with FAR 21.197. TABLE I 720/720B 707-100/-100B/-200 Initial inspection interval 125 landings 175 landings Repetitive inspections 250 landings 350 landings Accomplishment of the modification described in Accomplishment Instructions, Part II, of Boeing Service Bulletin 3332, Rev. 3, dated January 8, 1982, or later FAA approved revisions, constitutes terminating action for this AD. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). Amendment 39-3617 became effective November 27, 1979. This Amendment 39-4587 becomes effective April 4, 1983. FOOTER:
Document Text
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AD Final Rules - DRS_79-24-04_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-24-04 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes Subject: Horizontal Stabilizer Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/04/1983 Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 720 Series | 720B Series 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: 79-24-04 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4587 AD NUMBER: 79-24-04 R1 SUBJECT HEADING: BOEING Model 707-100, 707-100B, 707-200, and 720, 720B Series Airplanes ACTION: SUMMARY: DATES: Effective April 4, 1983. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-24-04 R1 BOEING: Amendment 39-3617 as amended by Amendment 39-4587. Applies to all Boeing 707-100, 707-100B, 707-200, and Boeing 720, 720B series airplanes. Within the next number of landings shown in Table I, if not already accomplished within the last same number of landings, and at repeat intervals not to exceed those specified, visually inspect the horizontal stabilizer center section rear spar upper chord in accordance with page 9, paragraph IIIB, Boeing Service Bulletin 3332, Rev. 2, or in a manner approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. If cracks are found, repair prior to further flight in a manner approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, except that airplanes may be flown to a maintenance base for repairs or replacement in accordance with FAR 21.197. TABLE I 720/720B 707-100/-100B/-200 Initial inspection interval 125 landings 175 landings Repetitive inspections 250 landings 350 landings Accomplishment of the modification described in Accomplishment Instructions, Part II, of Boeing Service Bulletin 3332, Rev. 3, dated January 8, 1982, or later FAA approved revisions, constitutes terminating action for this AD. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). Amendment 39-3617 became effective November 27, 1979. This Amendment 39-4587 becomes effective April 4, 1983. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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