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Aircraft structures A-6A1 Commercial Aircraft Committee Parts and Components

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Standard

External Hydraulic Leakage for In-Service Components
2022-12-16
CURRENT
ARP1084B
The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide guide lines for allowable leakage for in-service aircraft hydraulic components at a nominal 100 °F (38 °C) temperature and to outline the procedure for measuring such leakage. The limits to be applied to any specific aircraft should be adjusted before inclusion in a maintenance manual.
Standard

Aerospace - Commercial Aircraft Hydraulic Systems
2021-10-05
WIP
AIR5005B
This SAE Aerospace Information Report (AIR) has been compiled to provide information on hydraulic systems fitted to commercial aircraft. Data has been provided for following aircraft types: a. Wide body jet airliners b. Narrow body jet airliner c. Turboprop/commuter aircraft d. Business jet aircraft The airliners that have been included in this document are generally in operational service with either airlines or cargo operators. Information on aircraft that have been retired from in-service use has been included for reference purposes. No information is presented for aircraft that are currently being developed.
Standard

Aerospace Design and Installation of Commercial Transport Helicopter Hydraulic Systems
2021-08-18
WIP
ARP4925C
This SAE Aerospace Recommended Practice (ARP) establishes the factors which should be considered in the design and installation of a commercial transport rotorcraft hydraulic system, including the applicable airworthiness regulations that affect the hydraulic system. This ARP also provides information and guidelines on the many factors that arise in the design process to provide cost effectiveness, reliability, maintainability and accepted design and installation practices.
Standard

Aerospace - General Requirements for Commercial Aircraft Hydraulic Components
2021-08-18
WIP
AS4941C
This SAE Aerospace Standard (AS) provides general requirements for components that are used in commercial aircraft hydraulic systems. It also includes the 14 CFR Part 25/CS 25 regulations that apply to hydraulic components. It also provides information to be included in the Procurement Specification in Appendix A and a checklist for design reviews in Appendix B. It does not provide requirements for distribution elements such as hoses, pipe fittings and general tubing.
Standard

Commercial Aircraft Hydraulic System Sizing
2021-01-26
CURRENT
ARP6277
The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide guidelines for determining the hydraulic flow demands for all phases of commercial flight including details of sizing of associated hydraulic components such as hydraulic pumps, hydraulic accumulators, hydraulic reservoirs, hydraulic filters, and hydraulic tubing.
Standard

Aerospace - Commercial Aircraft Hydraulic Systems
2015-09-21
CURRENT
AIR5005A
This SAE Aerospace Information Report (AIR) has been compiled to provide information on hydraulic systems fitted to commercial aircraft. Data has been provided for following aircraft types: a Wide body jet airliners b Narrow body jet airliners c Turboprop/commuter aircraft d Business jet aircraft The airliners that have been included in this document are generally in operational service with either airlines or cargo operators. Information on aircraft that have been retired from in-service use has been included for reference purposes. No information is presented for aircraft that are currently being developed.
Standard

Aerospace - Lightning Effects on Hydraulic Transport Elements on Aircraft
2015-08-28
CURRENT
AIR6185
This SAE Aerospace Information Report (AIR) describes hydraulic system design and installation to minimize the effects of lightning, especially when the aircraft structure is composite. Techniques for effective electrical bonding, hydraulic system lightning protection, and lightning protection verification techniques are discussed.
Standard

Aerospace - General Requirements for Commercial Aircraft Hydraulic Components
2015-03-09
CURRENT
AS4941B
This SAE Aerospace Standard (AS) provides general requirements for components that are used in commercial aircraft hydraulic systems. It also includes the 14 CFR Part 25/CS 25 regulations that apply to hydraulic components. It also provides information to be included in the Procurement Specification in Appendix A and a checklist for design reviews in Appendix B. It does not provide requirements for distribution elements such as hoses, pipe fittings and general tubing.
Standard

Aerospace Design and Installation of Commercial Transport Helicopter Hydraulic Systems
2014-10-09
CURRENT
ARP4925B
This SAE Aerospace Recommended Practice (ARP) establishes the factors which should be considered in the design and installation of a commercial transport rotorcraft hydraulic system, including the applicable airworthiness regulations that affect the hydraulic system. This ARP also provides information and guidelines on the many factors that arise in the design process to provide cost effectiveness, reliability, maintainability and accepted design and installation practices.
Standard

External Hydraulic Leakage for In-Service Components
2013-10-04
HISTORICAL
ARP1084A
The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide guide lines for allowable leakage for in-service aircraft hydraulic components at a nominal 100 °F (38 °C) temperature and to outline the procedure for measuring such leakage. The limits to be applied to any specific aircraft should be adjusted before inclusion in a maintenance manual.
Standard

Placarding of Aircraft Hydraulic Equipment to Identify Phosphate Ester Fluid Compatibility
2012-07-11
CURRENT
ARP1288B
This ARP defines a recommended placard for readily identifying equipment with aircraft phosphate ester fluid to be used in the aircraft hydraulic systems to assure compatibility between the internal seals/materials and the system fluid. A definition is provided for a durable type and semipermanently attached placard with prescribed text for the permissible fluid are included in the document.
Standard

Aerospace - General Requirements for Commercial Aircraft Hydraulic Components
2007-11-15
HISTORICAL
AS4941A
This SAE Aerospace Standard (AS) provides general requirements for components that are used in commercial aircraft hydraulic systems. It also includes the FAR/JAR/CS 25 regulations that apply to hydraulic components. It is to be used in conjunction with a Procurement Specification for each component. It also provides information to be included in the Procurement Specification in Appendix A and a checklist for design reviews in Appendix B. It does not provide information on distribution elements such as hoses, pipe couplings and general tubing.
Standard

Aerospace - Commercial Aircraft Hydraulic Systems
2000-03-01
HISTORICAL
AIR5005
This SAE Aerospace Information Report (AIR) has been compiled to provide information on hydraulic systems fitted to commercial aircraft. Data has been provided for the following aircraft types: a Wide body jet airliners; b Narrow body jet airliners; c Turboprop/commuter aircraft. The aircraft that have been included in this document are in operational service with either airlines or cargo operators. No information is presented for aircraft that are currently being developed.
Standard

Placarding of Aircraft Hydraulic Equipment to Identify Phosphate Ester Fluid Compatibility
1998-10-01
HISTORICAL
ARP1288A
This ARP defines a recommended placard for readily identifying equipment with aircraft phosphate ester fluid to be used in the aircraft hydraulic systems to assure compatibility between the internal seals/materials and the system fluid. A definition is provided for a durable type and semipermanently attached placard with prescribed text for the permissible fluid are included in the document.
Standard

HYDRAULIC EXTERNAL LEAKAGE FOR IN-SERVICE COMPONENTS
1995-08-01
HISTORICAL
ARP1084
The allowable leakage for hydraulic components has been documented in various military specifications concerning components. The leakage requirements given in the military specifications are intended in part to control the quality, assembly and proper functioning of the components. However, components that are in service sometimes develop leakage rates in excess of the specified amount. This does not necessarily imply that the components have degraded to a degree that they no longer provide reliable operation or that they would be detrimental to the system. The intent of this ARP is to establish a level of allowable leakage that will be applicable only to in-service hydraulic components. It is hoped that this will result in minimizing what is often the unnecessary removal of hydraulic components from an aircraft.
Standard

AEROSPACE - HYDRAULIC SYSTEM FLUID CONTAMINATION - LOCATION OF SAMPLING POINTS
1989-10-01
HISTORICAL
ARP4268
The scope of this Aerospace Recommended Practice (ARP) covers where, when, and how often to sample hydraulic system fluid on aerospace vehicles for particulate contamination measurements. The measurement of hydraulic fluid particulate contamination is of concern to the aerospace community because of the critical importance of hydraulic equipment reliability. Contamination is always present in the system fluid, even in new unused fluid. Contamination must be below a level that will not adversely affect system operation. This ARP draws from aerospace industry experience and practice to establish criteria for fluid contamination sampling recommendations in aerospace vehicle hydraulic systems. Fluid samples can then be subjected to measurement of particulate contamination and of other harmful contaminants such as chlorinated solvents and water.
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