В который раз пишу - течь топлива в этом случае допускается.
При всем уважении, есть требования по утечке по самим бакам § 25.721
(d) Fuel tanks must, so far as it is practicable, be designed, located, and installed so that no fuel is released in or near the fuselage, or near the engines, in quantities that would constitute a fire hazard in otherwise survivable emergency landing conditions, and -
(5) Fuel tank installations must be such that the tanks
will not rupture as a result of the landing gear or an engine pylon or engine mount tearing away as specified in
§ 25.721(a) and (c).
И по отделению шасси
§ 25.721 General.
(a) The landing gear system must be designed so that when it fails due to overloads during takeoff and landing, the failure mode is not likely to cause spillage of enough fuel to constitute a fire hazard.
В итоге, в Advisory в принципе запрещается пробивать баки шасси
It should be shown that, at the time of separation, no fuel tank will be ruptured at or near the landing gear attachments. In addition, it should be shown that a failed landing gear will not impact an adjacent fuel tank, considering the kinematic motion of the landing gear throughout the breakaway sequence.