Sec. 23.755 - Hulls.
(a) The hull of a hull seaplane or
amphibian of 1,500 pounds or more maximum weight must have watertight
compartments designed and arranged so that the hull auxiliary floats, and
tires (if used), will keep the airplane afloat without capsizing in fresh
water when --
(1) For airplanes of 5,000 pounds or
more maximum weight, any two adjacent compartments are flooded; and
(2) For airplanes of 1,500 pounds up to,
but not including, 5,000 pounds maximum weight, any single compartment is
(b) Watertight doors in bulkheads may be
used for communication between compartments.
[Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as
amended by Amdt. 23-45, 58 FR 42165, Aug. 6, 1993; Amdt. 23-48, 61 FR
5148, Feb. 9, 1996]