AD 64-15-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 720 Series | BOEING Models 720 and 720B Series Aircraft |
| aircraft | The Boeing Company | 720B Series | BOEING Models 720 and 720B Series Aircraft |
Unsafe Condition
Cracks have occurred in the inboard wing upper skin just aft of the front spar and inboard of the inboard nacelle overwing support fitting at approximately front spar Station 405. The cracks found were generally in a chord-wise direction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect visually or by dye penetrant method for cracks in the upper wing skin per Boeing Service Bulletin No. 1983(R-1). Repair detected cracks per Boeing Drawing 65-40293 or approved repair before further flight. Repetitive inspections may be discontinued after rework per Part II of the same service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 250 hours' time in service after the effective date of this AD for aircraft with 5,000 or more hours' time in service, and prior to the accumulation of 5,250 hours' time in service for aircraft with less than 5,000 hours' time in service, unless already accomplished, and thereafter at periods not to exceed 600 hours' time in service from the last inspection
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Models 720 and 720B Series Aircraft
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Inboard Nacelle Overwing Support Fitting
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_64-15-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-15-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Models 720 and 720B Series Aircraft Subject: Inboard Nacelle Overwing Support Fitting Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/17/1965 Make: The Boeing Company Model: 720 Series | 720B Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 64-15-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 64-15-02 SUBJECT HEADING: BOEING Models 720 and 720B Series Aircraft ACTION: SUMMARY: DATES: Effective June 17, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-15-02 BOEING: Amdt. 758 Part 507 Federal Register July 7, 1964. Applies to All Models 720 and 720B Series Aircraft. Compliance required within 250 hours' time in service after the effective date of this AD for aircraft with 5,000 or more hours' time in service, and prior to the accumulation of 5,250 hours' time in service for aircraft with less than 5,000 hours' time in service, unless already accomplished, and thereafter at periods not to exceed 600 hours' time in service from the last inspection. Cracks have occurred in the inboard wing upper skin just aft of the front spar and inboard of the inboard nacelle overwing support fitting at approximately front spar Station 405. The cracks found were generally in a chord-wise direction. To correct this condition, accomplish the following or an equivalent approved by Aircraft Engineering Division, FAA Western Region. (a) Inspect visually or by a dye penetrant method for cracks in the upper wing skin in accordance with paragraph 3, Part I, "Inspection and Repair Data" of Boeing Service Bulletin No. 1983(R-1) dated May 5, 1964. (b) Repair cracks detected in the affected skin area in accordance with Boeing Drawing 65-40293, Sheets 1 and 2 or the Boeing Structural Repair Manual, before further flight. Repair any other crack(s) found during the inspection of paragraph (a) in accordance with an Aircraft Engineering Division, FAA Western Region, approved repair. (c) The repetitive inspections specified herein may be discontinued when the rework specified in Part II of Boeing Service Bulletin No. 1983 (R-1) is accomplished or repairs are made in accordance with (b). (d) Upon request of an operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Engineering Division, 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. (Boeing Service Bulletin No. 1983(R-1) covers this same subject.) This directive effective July 7, 1964. Revised August 21, 1964. Revised June 17, 1965. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_64-15-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-15-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Models 720 and 720B Series Aircraft Subject: Inboard Nacelle Overwing Support Fitting Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/17/1965 Make: The Boeing Company Model: 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: 64-15-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 64-15-02 SUBJECT HEADING: BOEING Models 720 and 720B Series Aircraft ACTION: SUMMARY: DATES: Effective June 17, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-15-02 BOEING: Amdt. 758 Part 507 Federal Register July 7, 1964. Applies to All Models 720 and 720B Series Aircraft. Compliance required within 250 hours' time in service after the effective date of this AD for aircraft with 5,000 or more hours' time in service, and prior to the accumulation of 5,250 hours' time in service for aircraft with less than 5,000 hours' time in service, unless already accomplished, and thereafter at periods not to exceed 600 hours' time in service from the last inspection. Cracks have occurred in the inboard wing upper skin just aft of the front spar and inboard of the inboard nacelle overwing support fitting at approximately front spar Station 405. The cracks found were generally in a chord-wise direction. To correct this condition, accomplish the following or an equivalent approved by Aircraft Engineering Division, FAA Western Region. (a) Inspect visually or by a dye penetrant method for cracks in the upper wing skin in accordance with paragraph 3, Part I, "Inspection and Repair Data" of Boeing Service Bulletin No. 1983(R-1) dated May 5, 1964. (b) Repair cracks detected in the affected skin area in accordance with Boeing Drawing 65-40293, Sheets 1 and 2 or the Boeing Structural Repair Manual, before further flight. Repair any other crack(s) found during the inspection of paragraph (a) in accordance with an Aircraft Engineering Division, FAA Western Region, approved repair. (c) The repetitive inspections specified herein may be discontinued when the rework specified in Part II of Boeing Service Bulletin No. 1983 (R-1) is accomplished or repairs are made in accordance with (b). (d) Upon request of an operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Engineering Division, 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. (Boeing Service Bulletin No. 1983(R-1) covers this same subject.) This directive effective July 7, 1964. Revised August 21, 1964. Revised June 17, 1965. 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.
Related Airworthiness Directives
2023-10-02
final ruleAirworthiness Directives; Transport and Commuter Category Airplanes
Unsafe Condition: Radio altimeter anomalies that are undetected by the automation or pilot, particularly close to the ground (e.g., landing flare), could lead to loss of continued safe flight and landing. Additional...
2020-03-11
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: The potential for a fuel tank ignition source to occur from the FQIS due to its design architecture, component design details, and installation design details.
2018-23-12
final ruleAirworthiness Directives; Zodiac Aero Evacuation Systems (Also Known as Air Cruisers Company) Airplanes
Unsafe Condition: Reports indicating that affected fusible plugs activated (vented gas) below the rated temperature.
2018-19-32 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: Cracks in the nacelle strut spar and overwing fittings, and diagonal braces and associated fittings, which if not detected and corrected, could grow beyond a critical length, allowing the strut fit...