AD 62-02-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-300 Series | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 720 Series | BOEING Models 707 and 720 Series Airplanes |
| aircraft | The Boeing Company | 720B Series | BOEING Models 707 and 720 Series Airplanes |
Unsafe Condition
Leakage through the secondary seal of the fuel dump chute when fuel enters the manifold.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the secondary fuel seal assembly (Boeing P/N 66-2538), rebuild using new parts from Boeing kit P/N 65-9566-1, install new O-ring seal P/N MS29513-238, and change the part number to 69-16258-1.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 3,250 hours' time in service after the effective date of this directive
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Models 707 and 720 Series airplanes not previously modified per Service Bulletin No. 1359 and Model 707 airplanes with retractable dump chutes installed per Service Bulletin No. 1200.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Secondary Fuel Seal Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_62-02-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 62-02-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Models 707 and 720 Series Airplanes Subject: Secondary Fuel Seal Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/20/1962 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: 62-02-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-389 AD NUMBER: 62-02-03 SUBJECT HEADING: BOEING Models 707 and 720 Series Airplanes ACTION: SUMMARY: DATES: Effective February 20, 1962. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 62-02-03 BOEING: Amdt 389 Part 507 Federal Register January 19, 1962. Applies to Models 707 and 720 Series Airplanes Which Have Not Previously Been Modified In Accordance With Boeing Service Bulletin No. 1359, Dated June 30, 1961, (Service Bulletin No. 1359 Contains a List of Such Airplanes), and to Model 707 Airplanes on Which Retractable Dump Chutes Have Been Installed Per Boeing Service Bulletin No. 1200. Compliance required as indicated. In order to prevent leakage through the secondary seal of the fuel dump chute when fuel is allowed to enter the manifold for any reason, the following modification shall be accomplished within 3,250 hours' time in service after the effective date of this directive: Remove the secondary fuel seal assembly, Boeing P/N 66-2538, and rebuild using new parts from Boeing kit, P/N 65-9566-1. Upon completion of the rebuilding, change the part number of secondary seal assembly to 69-16258-1. Use new "O" ring seal P/N MS29513-238 when installing secondary seal assembly, P/N 69-16258-1. (Boeing Service Bulletin No. 1359, dated June 30, 1961, covers this modification.) This directive effective February 20, 1962. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_62-02-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 62-02-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Models 707 and 720 Series Airplanes Subject: Secondary Fuel Seal Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/20/1962 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: 62-02-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-389 AD NUMBER: 62-02-03 SUBJECT HEADING: BOEING Models 707 and 720 Series Airplanes ACTION: SUMMARY: DATES: Effective February 20, 1962. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 62-02-03 BOEING: Amdt 389 Part 507 Federal Register January 19, 1962. Applies to Models 707 and 720 Series Airplanes Which Have Not Previously Been Modified In Accordance With Boeing Service Bulletin No. 1359, Dated June 30, 1961, (Service Bulletin No. 1359 Contains a List of Such Airplanes), and to Model 707 Airplanes on Which Retractable Dump Chutes Have Been Installed Per Boeing Service Bulletin No. 1200. Compliance required as indicated. In order to prevent leakage through the secondary seal of the fuel dump chute when fuel is allowed to enter the manifold for any reason, the following modification shall be accomplished within 3,250 hours' time in service after the effective date of this directive: Remove the secondary fuel seal assembly, Boeing P/N 66-2538, and rebuild using new parts from Boeing kit, P/N 65-9566-1. Upon completion of the rebuilding, change the part number of secondary seal assembly to 69-16258-1. Use new "O" ring seal P/N MS29513-238 when installing secondary seal assembly, P/N 69-16258-1. (Boeing Service Bulletin No. 1359, dated June 30, 1961, covers this modification.) This directive effective February 20, 1962. 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
2023-12-15
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: 5G C-Band interference can cause radio altimeters to not perform their intended function, resulting in increased flightcrew workload while on approach with the flight director, autothrottle, or aut...
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...
2022-25-01 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: cracking in fastener holes at the center wing box and at certain positions of the rear spar and lower skin
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.
