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Considerations for Ground Fault Interrupter (GFI) / Arc Fault Circuit Breaker (AFCB) for fuel pumps power circuit protection installation, specification and testing

2016-02-08
WIP
AIR6384
This SAE Aerospace Information Report (AIR) is intended to provide guidance for installing GFI/AFCB in the fuel pumps power circuits for protection of fuel vapors ignition inside the tank in case of a failure that causing arcing inside the pump. Besides, this AIR is also intended to provide minimum specification and testing for ground fault interrupter (GFI) and arc fault circuit breaker (AFCB), addressing the issues associated with the verification requirements based on current regulatory guidance per AC25.981-1C.
Standard

Lubrication System Oil Tank Sizing

2018-02-26
WIP
ARP7976
This Aerospace Recommended Practice provides the considerations appropriate for Engine Lubrication System Oil Tank sizing, and provides means to confirm the oil volume held within the Oil Tank is adequate for satisfactory Lubrication System performance. Two scenarios should be considered when demonstrating that the Oil Tank capacity and oil volume held within the Oil Tank are adequate, sea level engine testing and in-flight operation, when demonstrating the capability of Lubrication System to operate in support of FAA Part 23 and Part 25, CFR Part 33, and corresponding EASA CS-E regulations, and equivalent Military application requirements.
Standard

Performance Evaluation of Fuel Filter Elements Utilized in Aircraft Gas Turbine Engine/APU Main Fuel Systems

2019-09-11
WIP
AIR6985
This SAE Aerospace Information Report (AIR) reviews performance testing of fuel filter elements utilized in aircraft gas turbine engine/APU fuel systems and discusses a sequence of standard tests used to qualify fuel filter element performance. This allows both manufacturer and customer a common means to specify, control, and evaluate filter elements. The methodology discussed should be incorporated in fuel filter element specifications.
Standard

Aircraft Fuel System Pressure Definitions

2018-06-05
WIP
AIR1749A
The information in this document is limited to aircraft engine fuel feed, refueling, and transfer components. It is assumed that isothermal, liquid fluid conditions exist, herein referred to as fuel. Where a unit of measure is suffixed, this is intended to show a generally associated unit for illustration only and is not an exclusive endorsement of this particular term. Where applicable and allowable it is understood that a referee fluid may be substituted for fuel.
Standard

Aircraft Engine Fuel Feed and Transfer Component Pressure Definitions

1991-02-13
CURRENT
AIR1749
The information in this document is limited to aircraft engine fuel feed, refueling, and transfer components (reference 2.1). It is assumed that isothermal, liquid fluid conditions exist, herein referred to as fuel. Where a unit of measure is suffixed, this is intended to show a generally associated unit for illustration only and is not an exclusive endorsement of this particular term. Where applicable and allowable it is understood that a referee fluid may be substituted for fuel.
Standard

Aircraft/Engine Fuel Pump Net Positive Suction Pressure Performance Test and Evaluation

1994-05-01
CURRENT
ARP4024
This procedure applies to engine or airframe-mounted fuel pumps. The procedure recommends single-pass operation to minimize changes in fuel properties affecting NPSP capability. An optional method using a recirculation system is also included and may be specified at the discretion of the equipment specification. This procedure defines the recommended test setup, test procedure, data acquisition, and data presentation.
Standard

Aircraft/Engine Fuel Pump Two Phase (Slugging Flow) Inlet Performance Test and Evaluation

1994-09-01
CURRENT
ARP4028
This procedure is intended to apply to all engine or airframe mounted fuel pumps and controls when required by the applicable specification. The procedure recommends a recirculation system similar to ARP492 to control the fuel properties affecting the fluid and its ability to "release" fuel vapors and dissolved air and have these "re-entrained or dissolved" during the fluid recovery process back to the tank and the original starting conditions.
Standard

Multi-Pass Method for Evaluating Filtration Performance of Fine Lube Filter Elements Utilized in Aerospace Power and Propulsion Lubrication Systems

2014-10-08
CURRENT
ARP5454B
This SAE Aerospace Recommended Practice (ARP) describes the multi-pass method for evaluating the filtration performance of fine lube filter elements, commonly utilized in aerospace power and propulsion lubrication systems: gas turbine engines, auxiliary power units (APUs), helicopter transmissions, constant speed drives (CSDs), and integrated drive generators (IDGs).
Standard

Multi-Pass Method for Evaluating Filtration Performance of Fine Lube Filter Elements Utilized in Aerospace Power and Propulsion Lubrication Systems

2008-12-17
HISTORICAL
ARP5454A
This SAE Aerospace Recommended Practice (ARP) describes the multi-pass method for evaluating the filtration performance of fine lube filter elements, commonly utilized in aerospace power and propulsion lubrication systems: gas turbine engines, auxiliary power units (APUs), helicopter transmissions, constant speed drives (CSDs), and integrated drive generators (IDGs).
Standard

Multi-Phase Method for Evaluating Filtration Performance of Fine Lube Filter Elements Utilized in Aerospace Power and Propulsion Lubrication Systems

2003-11-19
HISTORICAL
ARP5454
This SAE Aerospace Recommended Practice (ARP) describes the multi-pass method for evaluating the filtration performance of fine lube filter elements, commonly utilized in aerospace power and propulsion lubrication systems: gas turbine engines, auxiliary power units (APUs), helicopter transmissions, constant speed drives (CSDs), and integrated drive generators (IDGs).
Standard

Measuring Aircraft Gas Turbine Engine Fine Fuel Filter Element Performance

2003-05-15
HISTORICAL
ARP1827A
This SAE Aerospace Recommended Practice (ARP) delineates two complementary filter element performance ratings: (1) dirt capacity, and (2) filtration efficiency, and corresponding test procedures. It is intended for non-cleanable (disposable), fine fuel filter elements used in aviation gas turbine engine systems.
Standard

Measuring Aircraft Gas Turbine Engine Fine Fuel Filter Element Performance

2019-09-11
WIP
ARP1827D
This SAE Aerospace Recommended Practice (ARP) delineates two complementary filter element performance ratings: (1) dirt capacity, and (2) filtration efficiency, and corresponding test procedures. It is intended for non-cleanable (disposable), fine fuel filter elements used in aviation gas turbine engine fuel systems.
Standard

Measuring Aircraft Gas Turbine Engine Fine Fuel Filter Element Performance

2009-10-30
HISTORICAL
ARP1827B
This SAE Aerospace Recommended Practice (ARP) delineates two complementary filter element performance ratings: (1) dirt capacity, and (2) filtration efficiency, and corresponding test procedures. It is intended for non-cleanable (disposable), fine fuel filter elements used in aviation gas turbine engine fuel systems.
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