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FAR – Regulatory Requirements Covering the Use of Breathing Oxygen in Aircraft

2021-09-22
WIP
AIR1389C
This report presents, paraphrased in tabular format, an overview of the Federal Aviation Regulations (FAR) for aircraft oxygen systems. It is intended as a ready reference for those considering the use of oxygen in aircraft and those wishing to familiarize themselves with the systems requirements for existing aircraft. This document is not intended to replace the oxygen related FAR but rather to index them in some order. For detailed information, the user is referred to the current issue of the relevant FAR paragraph referenced in this report.
Standard

Oxygen Considerations for High Elevation Airport Operations (HEAO)

2021-08-26
CURRENT
AIR6829
This document covers information concerning the use of oxygen when flying into and out of high elevation airports for both pressurized and non-pressurized aircraft. Oxygen requirements for pressurized aircraft operating at high altitudes have for decades emphasized the potential failures that could lead to a loss of cabin pressurization coupled with the potential severe hypoxic hazard that decompressions represent. This document is intended to address the case where the relationship between cabin and ambient pressures are complicated by operations at high terrestrial altitudes. Operators who fly into these high-altitude airports should address the issues related to this environment because it carries the potential for insidious hypoxia and other conditions which can affect safety. It provides information to consider in developing operational procedures to address hypoxia concerns consistent with regulatory mandates.
Standard

Effects of Acute Altitude Exposure in Humans: Requirements for Physiological Protection

2021-08-09
WIP
AIR825/2A
The intent of this SAE Aerospace Information Report (AIR) is to describe the effects of the environmental changes on human physiology and the protection required to avoid negative consequences resulting from altitude exposure. A brief presentation of basic terms and considerations required to discuss the topic of human physiology at altitude are followed by an overview of the cardiovascular and respiratory systems. Issues specifically related to human exposure to altitude are then discussed.
Standard

Aircraft Oxygen Replenishment Coupling for Civil Transport Aircraft (Design Standard)

2021-03-09
WIP
AS1219B
This SAE Aerospace Design Standard defines a coupling, which is installed in a high pressure (1850 to 2000 psig) oxygen system of a civil transport aircraft for the purpose of mating to ground oxygen replenishment facilities. Dimensions developed from AND10089, Detail Specification Sheet for Fitting End, Design Standard, For Cone Connection.
Standard

Oxygen Sensor Technologies

2020-12-18
CURRENT
AIR5933
AIR5933 provides an overview of contemporary technologies (i.e., sensors) that measure the proportion of oxygen in a gas. The use of these sensors in the aerospace environment, with its special constraints, is discussed and papers/reports with detailed information are summarized and referenced. The sensors are divided into expendable and non-expendable sensors. Expendable sensors are based on electrochemical properties, whereas non-expendable sensors rely on paramagnetic, photo-acoustic, electromagnetic, and laser spectroscopy properties.
Standard

FITTING END, BULKHEAD, CONE, DESIGN STANDARD

2020-12-03
WIP
AS6847
This SAE Aerospace Standard defines a bulkhead coupling (with different fitting end styles), which is used in bulkhead cone connection fittings installed in high pressure (3000 psi) oxygen systems for the purpose of mating to applicable oxygen equipment. Dimensions developed from AND10089, Detail Specification Sheet for Fitting End, Design Standard, For Cone Connection.
Standard

FITTING, TEE, BULKHEAD ON SIDE, CONE, DESIGN STANDARD

2020-11-02
WIP
AS6844
This SAE Aerospace Standard (AS) establishes the requirements for bulkhead-on-side-tee cone connection fittings, for use in aircraft oxygen systems at nominal operating pressures up to and including 3000 psi.
Standard

FITTING, TEE, BULKHEAD ON RUN, CONE, DESIGN STANDARD

2020-11-02
WIP
AS6843
This SAE Aerospace Standard (AS) establishes the requirements for bulkhead-on-run-tee cone connection fittings, for use in aircraft oxygen systems at nominal operating pressures up to and including 3000 psi.
Standard

FITTING, UNION, BULKHEAD, CONE, DESIGN STANDARD

2020-11-02
WIP
AS6845
This SAE Aerospace Standard (AS) establishes the requirements for bulkhead-union cone connection fittings, for use in aircraft oxygen systems at nominal operating pressures up to and including 3000 psi.
Standard

Gaseous Oxygen and Oxygen Equipment, Introductory

2020-10-22
WIP
AIR825/3A
This Aerospace Information Report provides a general discussion on gaseous breathing oxygen and oxygen equipment for use on commercial aircraft. Other types of oxygen systems are mentioned to assist in this discussion. For detailed information on systems other than gaseous, reference the appropriate section of AIR825.
Standard

Oxygen System and Component Cleaning

2020-10-19
CURRENT
ARP1176B
This SAE Aerospace Recommended Practice (ARP) provides recommended practices for the cleaning of aircraft oxygen equipment, both metallic and non-metallic articles, such as oxygen lines (tubes, hoses, etc.), components (including regulator and valve parts), cylinders, and ground-based equipment that may be used to support aircraft oxygen systems. This document also specifies work area details, methods for selecting suitable cleaning agents, cleaning methods, and test methods for verifying levels of cleanliness. The cleanliness coding scheme specified in this document provides a method for documenting minimum cleanliness level requirements and for identifying compliance.
Standard

Flight Crew Oxygen Mask Installations

2020-10-15
WIP
AIR6841
Purpose of this Aerospace Information Report is to provide information about different mask configurations, applicable requirements,use, functionality and varying installations on flight deck.
Standard

Personal Protective Devices for Toxic and Irritating Atmospheres Air Transport Flight Deck (Sedentary) Crewmembers

2020-09-03
WIP
AS8031B
This SAE Aerospace Standard (AS) covers any protection system that serves the stated purpose. This document establishes minimum performance requirements for emergency equipment, which provides flight deck (sedentary) crewmembers with eye and respiratory protection from toxic atmospheres during in-flight emergencies. Defintion of sedentary: "sedentary" is herein defined as those flight deck crewmembers that remain seated at their flight deck stations throughout the emergency. For those "nonsedentary" cabin crewmembers whose duty it is to leave their flight station during an emergency (for example, to actively locate and fight an on-board fire).
Standard

Minimum Standard for Gaseous Oxygen Pressure Reducers

2020-05-27
CURRENT
AS1248B
This standard applies to pressure reducers for gaseous breathing oxygen systems and for all performance profiles without regard to particular inlet or outlet pressures. Attention is given, however, to construction requirements for reducers with maximum supply pressures to 2250 psig (155 bar) and reduced pressures of 50 to 150 psig (3.4 to 10.5 bar).
Standard

Oxygen Cylinder Quality, Serviceability, Maintenance Transfilling, and Marking

2020-01-17
CURRENT
AIR1059F
This document provides guidance concerning the maintenance and serviceability of oxygen cylinders beginning with the quality of oxygen that is required, supplemental oxygen information, handling and cleaning procedures, transfilling, and marking of serviced oxygen assemblies. This document attempts to outline in a logical sequence oxygen quality, serviceability, and maintenance of oxygen cylinders. Content of this document can also be used for refilling of oxygen cylinder while installed on aircraft, directly or through an intermediate charging port.
Standard

Minimum General Standards for Oxygen Systems

2019-10-16
WIP
AS861C
This standard covers all types of oxygen breathing equipment used in non-military aircraft. It is intended that this standard supplement the requirements of the detail specification or drawings of specific components or assemblies, e.g., regulators, masks, cylinders, etc. Where a conflict exists between this and detail specifications, detail specifications shall take precedence.
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