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CS 27.831 Ventilation
Available versions for ERULES-1963177438-4720
ED Decision 2003/15/RM
found in: CS-27 Amdt 9 - Small Rotorcraft (Dec 2021)
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CS 27.831 Ventilation ED Decision 2003/15/RM (a) The ventilating system for the pilot and passenger compartments must be designed to prevent the presence of excessive quantities of fuel fumes and carbon monoxide. (b) The concentration of carbon monoxide may not exceed one part in 20 000 parts of air during forward flight or hovering in still air. If the concentration exceeds this value under other conditions, there must be suitable operating restrictions.
CS 27.831 Ventilation ED Decision 2003/15/RM (a) The ventilating system for the pilot and passenger compartments must be designed to prevent the presence of excessive quantities of fuel fumes and carbon monoxide. (b) The concentration of carbon monoxide may not exceed one part in 20 000 parts of air during forward flight or hovering in still air. If the concentration exceeds this value under other conditions, there must be suitable operating restrictions.