AD 84-03-03
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | HS.125 Series 600A | Airworthiness Directives; BRITISH AEROSPACE Model HS125 Airplanes Series 1A, 400A, 600A and 700A Airplanes |
| aircraft | Textron Aviation Inc. | HS.125 Series 700A | Airworthiness Directives; BRITISH AEROSPACE Model HS125 Airplanes Series 1A, 400A, 600A and 700A Airplanes |
Unsafe Condition
Loss of power to both engine fuel computers due to a single fuse failure.
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Required Actions
Modify the engine fuel computers' direct current power supply electrical circuits in accordance with British Aerospace Service Bulletin 24-225-(2747), paragraph 2. Alternate means of compliance may be used if approved by the FAA. Special flight permits may be issued under FAR 21.197 and 21.199.
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Compliance Time
Within the next 500 hours time in service or one year, whichever occurs first after the effective date of this AD.
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Affected Aircraft
British Aerospace Model HS125 airplanes series 1A with modifications 251867 and 252605, series 400A with modification 252550, series 600A with modification 252468, and series 700A. Serial numbers listed in Service Bulletin 24-225-(2747).
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Federal Register Abstract
Power Supply Elec. Circuits
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_84-03-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-03-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AEROSPACE Model HS125 Airplanes Series 1A, 400A, 600A and 700A Airplanes Subject: Power Supply Elec. Circuits Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/22/1984 Make: Textron Aviation Inc. Model: HS.125 Series 600A | HS.125 Series 700A Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 84-03-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4812 AD NUMBER: 84-03-03 SUBJECT HEADING: Airworthiness Directives; BRITISH AEROSPACE Model HS125 Airplanes Series 1A, 400A, 600A and 700A Airplanes ACTION: SUMMARY: DATES: Effective March 22, 1984. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-03-03 BRITISH AEROSPACE: Amendment 39-4812. Applies to Model HS 125 airplanes series 1A with modifications 251867 and 252605, series 400A with modification 252550, series 600A with modification 252468, and series 700A, certificated in all categories. The serial numbers of the affected airplanes are listed in the Planning Information section of British Aerospace 125 series Service Bulletin 24-225-(2747), dated October 17, 1980. Compliance is required as indicated, unless already accomplished. To prevent loss of power to both engine fuel computers by a single fuse failure, accomplish the following: A. Modify the engine fuel computers' direct current power supply electrical circuits within the next 500 hours time in service or one year, whichever occurs first after the effective date of this AD, in accordance with paragraph 2, Accomplishment Instructions, of British Aerospace, HS 125 series Service Bulletin 24-225-(2747), dated October 17, 1980. B. 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. C. 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 22, 1984. FOOTER:
Document Text
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AD Final Rules - DRS_84-03-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-03-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AEROSPACE Model HS125 Airplanes Series 1A, 400A, 600A and 700A Airplanes Subject: Power Supply Elec. Circuits Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/22/1984 Make: Textron Aviation Inc. Model: HS.125 Series 600A | HS.125 Series 700A 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: 84-03-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4812 AD NUMBER: 84-03-03 SUBJECT HEADING: Airworthiness Directives; BRITISH AEROSPACE Model HS125 Airplanes Series 1A, 400A, 600A and 700A Airplanes ACTION: SUMMARY: DATES: Effective March 22, 1984. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-03-03 BRITISH AEROSPACE: Amendment 39-4812. Applies to Model HS 125 airplanes series 1A with modifications 251867 and 252605, series 400A with modification 252550, series 600A with modification 252468, and series 700A, certificated in all categories. The serial numbers of the affected airplanes are listed in the Planning Information section of British Aerospace 125 series Service Bulletin 24-225-(2747), dated October 17, 1980. Compliance is required as indicated, unless already accomplished. To prevent loss of power to both engine fuel computers by a single fuse failure, accomplish the following: A. Modify the engine fuel computers' direct current power supply electrical circuits within the next 500 hours time in service or one year, whichever occurs first after the effective date of this AD, in accordance with paragraph 2, Accomplishment Instructions, of British Aerospace, HS 125 series Service Bulletin 24-225-(2747), dated October 17, 1980. B. 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. C. 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 22, 1984. FOOTER:
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