AD 85-04-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 767-200 Series | BOEING Model 767-200 Series Airplanes |
Unsafe Condition
Fuel boost pump seizures in flight as a result of operation with cold fuel.
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Required Actions
Install a cockpit placard limiting fuel tank temperature to -37°C (-35°F) within 30 days. Replace at least one fuel boost pump in each main and center auxiliary tank (if activated) within one year. Replace all unimproved fuel boost pumps in these tanks within two years, following Boeing Service Bulletin 767-28-14 or approved revision.
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Compliance Time
Within 30 days after the effective date of this AD, within one year after the effective date, and within two years after the effective date.
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Affected Aircraft
Boeing Model 767-200 series airplanes certificated in all categories.
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Federal Register Abstract
Fuel Boost Pump
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_85-04-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-04-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 767-200 Series Airplanes Subject: Fuel Boost Pump Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/28/1985 Make: The Boeing Company Model: 767-200 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 85-04-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5007 AD NUMBER: 85-04-02 SUBJECT HEADING: BOEING Model 767-200 Series Airplanes ACTION: SUMMARY: DATES: Effective March 28, 1985. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-04-02 BOEING: Amendment 39-5007. Applies to the Model 767-200 series airplanes certificated in all categories. Compliance is required as indicated unless previously accomplished. To prevent fuel boost pump seizures in flight, as a result of operation with cold fuel, accomplish the following: A. Within 30 days after the effective date of this AD, install a cockpit placard which limits fuel tank temperature to -37 degrees C (-35 degrees F), in accordance with Boeing Service Bulletin 767-28-14 dated June 20, 1984, or later FAA approved revision. B. Within one year after the effective date of this AD, replace at least one fuel boost pump in each main fuel tank and at least one fuel boost pump in each center auxiliary fuel tank (if activated) with an improved boost pump, in accordance with Boeing Service Bulletin 767-28-14 dated June 20, 1984, or later FAA approved revision. C. Within two years after the effective date of this AD, replace all unimproved fuel boost pumps in each main tank and all unimproved fuel boost pumps in each center auxiliary tank (if activated) with improved fuel boost pumps, in accordance with Boeing Service Bulletin 767- 28-14 dated June 20, 1984, or later FAA approved revision. D. The fuel temperature limitation and cockpit placard required by paragraph A., above, may be removed after at least one improved fuel boost pump is installed in each tank location required by paragraph B., above. NOTE: The center auxiliary fuel tank boost pumps need not be replaced on airplanes with deactivated center auxiliary fuel tanks (i.e., those not able to be fueled); however, this deviation must be recorded in the permanent aircraft records. All center auxiliary fuel tank boost pumps must be replaced with the improved boost pumps identified in Boeing Service Bulletin 767-28-14 prior to activation of the center auxiliary fuel tank. E. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. F. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD. This amendment becomes effective March 28, 1985. FOOTER:
Document Text
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AD Final Rules - DRS_85-04-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-04-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 767-200 Series Airplanes Subject: Fuel Boost Pump Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/28/1985 Make: The Boeing Company Model: 767-200 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: 85-04-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5007 AD NUMBER: 85-04-02 SUBJECT HEADING: BOEING Model 767-200 Series Airplanes ACTION: SUMMARY: DATES: Effective March 28, 1985. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-04-02 BOEING: Amendment 39-5007. Applies to the Model 767-200 series airplanes certificated in all categories. Compliance is required as indicated unless previously accomplished. To prevent fuel boost pump seizures in flight, as a result of operation with cold fuel, accomplish the following: A. Within 30 days after the effective date of this AD, install a cockpit placard which limits fuel tank temperature to -37 degrees C (-35 degrees F), in accordance with Boeing Service Bulletin 767-28-14 dated June 20, 1984, or later FAA approved revision. B. Within one year after the effective date of this AD, replace at least one fuel boost pump in each main fuel tank and at least one fuel boost pump in each center auxiliary fuel tank (if activated) with an improved boost pump, in accordance with Boeing Service Bulletin 767-28-14 dated June 20, 1984, or later FAA approved revision. C. Within two years after the effective date of this AD, replace all unimproved fuel boost pumps in each main tank and all unimproved fuel boost pumps in each center auxiliary tank (if activated) with improved fuel boost pumps, in accordance with Boeing Service Bulletin 767- 28-14 dated June 20, 1984, or later FAA approved revision. D. The fuel temperature limitation and cockpit placard required by paragraph A., above, may be removed after at least one improved fuel boost pump is installed in each tank location required by paragraph B., above. NOTE: The center auxiliary fuel tank boost pumps need not be replaced on airplanes with deactivated center auxiliary fuel tanks (i.e., those not able to be fueled); however, this deviation must be recorded in the permanent aircraft records. All center auxiliary fuel tank boost pumps must be replaced with the improved boost pumps identified in Boeing Service Bulletin 767-28-14 prior to activation of the center auxiliary fuel tank. E. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. F. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD. This amendment becomes effective March 28, 1985. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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