AD 87-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 3101 | Airworthiness Directives; British Aerospace Model 3101 Jetstream Airplanes |
Unsafe Condition
Failure of HiTemp Valves Part Number HTE 4925-001 due to valve spindle fracture in fuel/hydraulic and water methanol systems during critical flight operations.
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Required Actions
Modify HiTemp Valves P/N HTE 4925-001 by replacing valve spindles P/N 4925-005 with strengthened spindles P/N 4925-013 per HiTemp SB HTE 4925/1-SB-1 and BAe S/B 28-JA850911. Perform functional tests as specified in the referenced documents.
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Compliance Time
within 600 hours time-in-service (TIS) after the effective date of this AD
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Affected Aircraft
British Aerospace Model 3101 Jetstream airplanes with serial numbers 642 to 646, 648 to 655, 657, 658 and 660 to 666 inclusive
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Federal Register Abstract
Valves
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_87-03-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 87-03-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; British Aerospace Model 3101 Jetstream Airplanes Subject: Valves Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/17/1987 Make: British Aerospace Regional Aircraft Model: Jetstream Series 3101 Product Type: Aircraft Product Subtype: Small/Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 87-03-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5504 AD NUMBER: 87-03-03 SUBJECT HEADING: Airworthiness Directives; British Aerospace Model 3101 Jetstream Airplanes ACTION: SUMMARY: DATES: Effective February 17, 1987. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 87-03-03 BRITISH AEROSPACE: Amendment 39-5504. Applies to Model 3101 Jetstream (S/N 642 to 646, 648 to 655, 657, 658 and 660 to 666 inclusive) airplanes certificated in any category. Compliance: Required within 600 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished. To ensure operation of fuel/hydraulic and water methanol system valves during critical flight operations, accomplish the following: (a) Modify the HiTemp Valves Part Number (P/N) HTE 4925-001 as follows: (1) Gain access to the valves in accordance with Section 2. "ACCOMPLISHMENT INSTRUCTIONS", paragraph A PREPARATION", in British Aerospace (BAe) S/B 28-JA850911 dated June 13, 1986. (2) Replace valve spindles P/N 4925-005 with strengthened spindles P/N 4925-013 in HiTemp Model HTE 1" Actuated Ball Valves in accordance with Section 2. "ACCOMPLISHMENT INSTRUCTIONS" in HiTemp SB HTE 4925/1-SB-1 dated August 19, 1985, on those valves located as follows: (i) Fuel system - left and right LP cocks at wing leading edges outboard of the engines, and crossfeed cock on fuselage center section. (ii) Hydraulic System - left and right LP cocks in the hydraulic installations below fuselage center section. (iii) Water Methanol System (if fitted) - stop valves in the left and right main landing gear bays. (3) Carry out functional tests of the valves in accordance with Section 2. "ACCOMPLISHMENT INSTRUCTIONS", paragraph B "ACCOMPLISHMENT", in BAe S/B 28-JA850911 dated June 13, 1986. (b) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished. (c) An equivalent means of compliance with this AD may be used if approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, B-1000, Brussels, Belgium. All persons affected by this directive may obtain a copy of the document referred to herein upon request to British Aerospace plc, Manager, Product Support Civil Aircraft Division, Prestwick Airport, Ayrshire, KA9 2RW, Scotland; or British Aerospace, Inc., Librarian, Box 17414, Dulles International Airport, Washington, D.C. 20041; or FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment becomes effective on February 17, 1987. FOOTER:
Document Text
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AD Final Rules - DRS_87-03-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 87-03-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; British Aerospace Model 3101 Jetstream Airplanes Subject: Valves Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/17/1987 Make: British Aerospace Regional Aircraft Model: Jetstream Series 3101 Product Type: Aircraft Product Subtype: Small/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: 87-03-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5504 AD NUMBER: 87-03-03 SUBJECT HEADING: Airworthiness Directives; British Aerospace Model 3101 Jetstream Airplanes ACTION: SUMMARY: DATES: Effective February 17, 1987. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 87-03-03 BRITISH AEROSPACE: Amendment 39-5504. Applies to Model 3101 Jetstream (S/N 642 to 646, 648 to 655, 657, 658 and 660 to 666 inclusive) airplanes certificated in any category. Compliance: Required within 600 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished. To ensure operation of fuel/hydraulic and water methanol system valves during critical flight operations, accomplish the following: (a) Modify the HiTemp Valves Part Number (P/N) HTE 4925-001 as follows: (1) Gain access to the valves in accordance with Section 2. "ACCOMPLISHMENT INSTRUCTIONS", paragraph A PREPARATION", in British Aerospace (BAe) S/B 28-JA850911 dated June 13, 1986. (2) Replace valve spindles P/N 4925-005 with strengthened spindles P/N 4925-013 in HiTemp Model HTE 1" Actuated Ball Valves in accordance with Section 2. "ACCOMPLISHMENT INSTRUCTIONS" in HiTemp SB HTE 4925/1-SB-1 dated August 19, 1985, on those valves located as follows: (i) Fuel system - left and right LP cocks at wing leading edges outboard of the engines, and crossfeed cock on fuselage center section. (ii) Hydraulic System - left and right LP cocks in the hydraulic installations below fuselage center section. (iii) Water Methanol System (if fitted) - stop valves in the left and right main landing gear bays. (3) Carry out functional tests of the valves in accordance with Section 2. "ACCOMPLISHMENT INSTRUCTIONS", paragraph B "ACCOMPLISHMENT", in BAe S/B 28-JA850911 dated June 13, 1986. (b) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished. (c) An equivalent means of compliance with this AD may be used if approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, B-1000, Brussels, Belgium. All persons affected by this directive may obtain a copy of the document referred to herein upon request to British Aerospace plc, Manager, Product Support Civil Aircraft Division, Prestwick Airport, Ayrshire, KA9 2RW, Scotland; or British Aerospace, Inc., Librarian, Box 17414, Dulles International Airport, Washington, D.C. 20041; or FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment becomes effective on February 17, 1987. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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