AD 82-12-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.) Model HS/BH/DH-125 Series Airplanes |
Unsafe Condition
Blocking of the main landing gear restrictor valves due to debris contamination
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Disassemble and inspect main landing gear restrictor valves for debris contamination, reassemble, install in-line filters per Service Bulletin 32-190, and consider special flight permits or alternate means of compliance if approved.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 100 flight hours time in service after the effective date of this AD
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Affected Aircraft
BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.) HS/BH/DH-125 series airplanes up to series 700 not modified per Modification 252837
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Main Landing Gear Restrictor Valves
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_82-12-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 82-12-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.) Model HS/BH/DH...Show more Subject: Main Landing Gear Restrictor Valves Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/08/1982 Make: Model: BH.125 Series 400A | BH.125 Series 600A | DH.125 Series 1A | DH.125 Series 1A/R-522 | DH.125 Series ...Show more Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 82-12-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4391 AD NUMBER: 82-12-01 SUBJECT HEADING: Airworthiness Directives; BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.) Model HS/BH/DH-125 Series Airplanes ACTION: SUMMARY: DATES: Effective June 8, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 82-12-01 BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.): Amendment 39-4391. HS/BH/DH-125 series airplanes certificated in all categories up to and including series 700 which have not been modified in accordance with Modification 252837. Compliance is required within 100 flight hours time in service after the effective date of this AD, unless already accomplished. To prevent blocking of the main landing gear restrictor valves, accomplish the following: 1. Disassemble the main landing gear restrictor valves and inspect for debris contamination, reassemble, and install in-line filters in accordance with British Aerospace Aircraft Group 125 Series Aircraft Service Bulletin 32-190 dated August 28, 1981. 2. 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 this AD. 3. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Mountain Region. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). This amendment becomes effective June 8, 1982. FOOTER:
Document Text
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AD Final Rules - DRS_82-12-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 82-12-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.) Model HS/BH/DH...Show more Subject: Main Landing Gear Restrictor Valves Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/08/1982 Make: Model: BH.125 Series 400A | BH.125 Series 600A | DH.125 Series 1A | DH.125 Series 1A/R-522 | DH.125 Series ...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: 82-12-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4391 AD NUMBER: 82-12-01 SUBJECT HEADING: Airworthiness Directives; BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.) Model HS/BH/DH-125 Series Airplanes ACTION: SUMMARY: DATES: Effective June 8, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 82-12-01 BRITISH AEROSPACE (formerly Hawker Siddeley Aviation, Ltd.): Amendment 39-4391. HS/BH/DH-125 series airplanes certificated in all categories up to and including series 700 which have not been modified in accordance with Modification 252837. Compliance is required within 100 flight hours time in service after the effective date of this AD, unless already accomplished. To prevent blocking of the main landing gear restrictor valves, accomplish the following: 1. Disassemble the main landing gear restrictor valves and inspect for debris contamination, reassemble, and install in-line filters in accordance with British Aerospace Aircraft Group 125 Series Aircraft Service Bulletin 32-190 dated August 28, 1981. 2. 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 this AD. 3. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Mountain Region. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). This amendment becomes effective June 8, 1982. FOOTER:
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Retrieved: Apr 8, 2026
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