AMC
25.1436(b)(3) Pneumatic Systems
ED Decision 2003/2/RM
1 In systems in which the air pressure of the supply sources is significantly greater than the system operating pressure (e.g. an engine bleed-air tapping) due account should be taken of the consequences of failure of the pressure-regulating device when assessing the strength of the system, downstream of the device relative to the values of PW, PL and PR.
2 Such devices should be protected as necessary against deleterious effects resulting from the presence of oil, water or other impurities, which may exist in the system.
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