§ 25.959. Unusable fuel supply.
78 words·~1 min read·
/us/cfr/t14/s§ 25.959·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
The unusable fuel quantity for each fuel tank and its fuel system components must be established at not less than the quantity at which the first evidence of engine malfunction occurs under the most adverse fuel feed condition for all intended operations and flight maneuvers involving fuel feeding from that tank. Fuel system component failures need not be considered. [Amdt. 25-23, 35 FR 5677, Apr. 8, 1970, as amended by Amdt. 25-40, 42 FR 15043, Mar. 17, 1977]