This standard specifies the technical requirements for the composition and function, control, environmental adaptability, noise, safety, reliability, maintainability, etc. of civil aircraft environmental control systems as well as the corresponding verification requirements. This standard applies to environmental control systems powered by engine bleed air on civil aircraft; this standard does not apply to all-electric or multi-electric environmental control systems.
HB 7489-2014 history
2014HB 7489-2014 General requirements for environmental control system of civil aircraft
1997HB 7489-1997 General requirements for civil aircraft environmental control systems