Sec. 139.305 - Paved areas.
(a) Each certificate holder shall
maintain, and promptly repair the pavement of, each runway, taxiway,
loading ramp, and parking area on the airport which is available for air
carrier use as follows:
(1) The pavement edges shall not exceed
3 inches difference in elevation between abutting pavement sections and
between full strength pavement and abutting shoulders.
(2) The pavement shall have no hole
exceeding 3 inches in depth nor any hole the slope of which from any point
in the hole to the nearest point at the lip of the hole is 45 degrees or
greater as measured from the pavement surface plane, unless, in either
case, the entire area of the hole can be covered by a 5-inch diameter
(3) The pavement shall be free of cracks
and surface variations which could impair directional control of air
(4) Except as provided in paragraph (b)
of this section, mud, dirt, sand, loose aggregate, debris, foreign
objects, rubber deposits, and other contaminants shall be removed promptly
and as completely as practicable.
(5) Except as provided in paragraph (b)
of this section, any chemical solvent that is used to clean any pavement
area shall be removed as soon as possible, consistent with the
instructions of the manufacturer of the solvent.
(6) The pavement shall be sufficiently
drained and free of depressions to prevent ponding that obscures markings
or impairs safe aircraft operations.
(b) Paragraphs (a)(4) and (a)(5) of this
section do not apply to snow and ice accumulations and their control,
including the associated use of materials such as sand and deicing
(c) FAA Advisory Circulars in the 150
series contain standards and procedures for the maintenance and
configuration of paved areas which are acceptable to the Administrator.