AMC 25.1436(b)(3) Pneumatic Systems

• ED Decision 2003/2/RM found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

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.