ED Decision 2016/013/R
The applicable standard is SAE AS8027, Crew Member Oxygen Regulator, Demand, dated 1 June 2004. It shall be modified as follows:
AS 8027 section: |
Action: |
Paragraph 1.1, Scope |
Shall be disregarded |
Paragraph 3.1.1 |
To be revised: Materials of a type, grade and quality shall be used where experience and/or tests have shown their suitability for the purpose. Materials contaminating oxygen or materials that are adversely affected by continuous service with oxygen must not be used. Except for small parts like knobs, triggers, fasteners, seals, and electrical parts that do not contribute significantly to fire propagation, materials including packaging must comply with CS 25.853, Appendix F, Part 1 (a)(1)(iv). |
Paragraph 3.1.2 |
To be revised: Filters have to be provided at oxygen inlet ports to prevent entrance of particles, which may be hazardous to the user or impair the function of the device. Filters must be equivalent to that of a 200 mesh screen. |
Paragraph 3.1.3 |
To be revised: For Class B, D, and E devices (diluter demand) an air inlet port has to be provided. The port shall be designed to prevent entrance of particles, which may impair performance of the device. A 100 mesh screen or equivalent filter shall be used. |
Paragraph 3.2.1.2 |
To be revised: Outlet Proof Pressure (Class A and B except Type IV) |
Paragraph 3.2.1.3 |
To be revised: Outlet Proof Pressure (Class C, D and E except Type IV) |
Paragraph 3.4, Applicability Matrix, Table 7 |
To be revised: 3.2.1.2 Outlet Proof Pressure (Except Type IV) 3.2.1.3 Outlet Proof Pressure (Except Type IV) 3.2.8 Relief Valve (Except Type IV) |
Paragraph 4.5.1 |
To be revised: High-temperature exposure: The device shall be soaked for 12 hours at not less than 160° F (71.1 °C). Then the device shall be transferred to 70° F (21.1 °C), ambient temperature. Within 30 minutes of doing this, the device shall be tested to the requirements of paragraphs 4.4.3 through 4.4.9. |
Paragraph 4.5.2 |
To be revised: Low temperature exposure: The device shall be soaked for 2 hours at not less than -65° F (-54°C). Then the device shall be transferred to 0° F (-17.8°C) for 2 hours to stabilise it. After this, the device shall be transferred to 70° F (21.1 °C), ambient temperature. Within 30 minutes of doing this, the device shall be tested to the requirements of paragraphs 4.4.3 through 4.4.9. |
Paragraph 5.1, Identification |
To be disregarded. |
[Amdt ETSO/11]
ETSO-C89a Appendix 1 specifies SAE AS8027 modifications for crew member oxygen generators, including material, filter, proof pressure, and temperature exposure test requirements.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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