Sec. 139.309 - Safety areas.
(a) To the extent practicable, each
certificate holder shall provide and maintain for each runway and taxiway
which is available for air carrier use --
(1) If the runway or taxiway had a
safety area on December 31, 1987, and if no reconstruction or significant
expansion of the runway or taxiway was begun on or after January 1, 1988,
a safety area of at least the dimensions that existed on December 31,
(2) If construction, reconstruction, or
significant expansion of the runway or taxiway began on or after January
1, 1988, a safety area which conforms to the dimensions acceptable to the
Administrator at the time construction, reconstruction, or expansion
(b) Each certificate holder shall
maintain its safety areas as follows:
(1) Each safety area shall be cleared
and graded, and have no potentially hazardous ruts, humps, depressions, or
other surface variations.
(2) Each safety area shall be drained by
grading or storm sewers to prevent water accumulation.
(3) Each safety area shall be capable
under dry conditions of supporting snow removal equipment, and aircraft
rescue and firefighting equipment, and supporting the occasional passage
of aircraft without causing major damage to the aircraft.
(4) No object may be located in any
safety area, except for objects that need to be located in a safety area
because of their function. These objects shall be constructed, to the
extent practical, on frangibly mounted structures of the lowest practical
height with the frangible point no higher than 3 inches above grade.
(c) FAA Advisory Circulars in the 150
series contain standards and procedures for the configuration and
maintenance of safety areas acceptable to the Administrator.