spoiler inop limitation
Hi folks
i would like to know what is the criteria for limiting the max altitude of the aircraft in case the spoilers are inop. I do remember it has to do with the time required to descend to a certain altitude during an emergency descent but i can not find the source nor the exact figures. many thanks baobab72 |
Typically it can be driven by the need to comply with:
CS 25.841 Pressurised cabins (a) Pressurised cabins and compartments to be occupied must be equipped to provide a cabin pressure altitude of not more than 2438 m (8000 ft) at the maximum operating altitude of the aeroplane under normal operating conditions. If certification for operation over 7620 m (25 000 ft) is requested, the aeroplane must be able to maintain a cabin pressure altitude of not more than 4572 m (15 000 ft) in the event of any reasonably probable failure or malfunction in the pressurisation system. There may be additional guidance (AC, AMJ, etc) giving more details. I haven't looked into that. |
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