Federal Aviation Administration, DOT

Section 25.783

[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-72, 55 FR 29779, July 20, 1990]

Fuselage doors.

(a) General. This section applies to fuselage doors, which includes all doors,
hatches, openable windows, access panels, covers, etc., on the exterior of the
fuselage that do not require the use of
tools to open or close. This also applies
to each door or hatch through a pressure bulkhead, including any bulkhead
that is specifically designed to func-

tion as a secondary bulkhead under the
prescribed failure conditions of part 25.
These doors must meet the requirements of this section, taking into account both pressurized and unpressurized flight, and must be designed as
follows:
(1) Each door must have means to
safeguard against opening in flight as a
result of mechanical failure, or failure
of any single structural element.

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Section 25.783