Section 121.590

14 CFR Ch. I (1-1-19 Edition)

(4) In accordance with any other
method approved by the Administrator.
[Doc. No. 24996, 52 FR 21476, June 5, 1987, as
amended by Amdt. 121-251, 60 FR 65935, Dec.
20, 1995]

Section 121.590 Use of certificated land airports in the United States.
(a) Except as provided in paragraphs
(b) or (c) of this section, or unless authorized by the Administrator under 49
U.S.C. 44706(c), no air carrier and no
pilot being used by an air carrier may
operate, in the conduct of a domestic
type operation, flag type operation, or
supplemental type operation, an airplane at a land airport in any State of
the United States, the District of Columbia, or any territory or possession
of the United States unless that airport is certificated under part 139 of
this chapter. Further, after June 9, 2005
for Class I airports and after December
9, 2005 for Class II, III, and IV airports,
when an air carrier and a pilot being
used by the air carrier are required to
operate at an airport certificated under
part 139 of this chapter, the air carrier
and the pilot may only operate at that
airport if the airport is classified under
part 139 to serve the type airplane to be
operated and the type of operation to
be conducted.
(b)(1) An air carrier and a pilot being
used by the air carrier in the conduct
of a domestic type operation, flag type
operation, or supplemental type operation may designate and use as a required alternate airport for departure
or destination an airport that is not
certificated under part 139 of this chapter.
(2) Until December 9, 2005, an air carrier and a pilot being used by the air
carrier in the conduct of domestic type
operations and flag type operations,
may operate an airplane designed for
more than 9 but less than 31 passenger
seats, at a land airport, in any State of
the United States, the District of Columbia, or any territory or possession
of the United States, that does not
hold an airport operating certificate
issued under part 139 of this chapter,
and that serves small air carrier aircraft (as defined under  - Air carrier aircraft -  and  - Class III airport -  in Section 139.5
of this Chapter).

(c) An air carrier and a pilot used by
the air carrier in conducting a domestic type operation, flag type operation,
or supplemental type operation may
operate an airplane at an airport operated by the U.S. Government that is
not certificated under part 139 of this
chapter, only if that airport meets the
equivalent - 
(1) Safety standards for airports certificated under part 139 of this chapter;
and
(2) Airport classification requirements under part 139 to serve the type
airplane to be operated and the type of
operation to be conducted.
(d) An air carrier, a commercial operator, and a pilot being used by the air
carrier or the commercial operator - 
when conducting a passenger-carrying
airplane operation under this part that
is not a domestic type operation, a flag
type operation, or a supplemental type
operation - may operate at a land airport not certificated under part 139 of
this chapter only when the following
conditions are met:
(1) The airport is adequate for the
proposed operation, considering such
items as size, surface, obstructions,
and lighting.
(2) For an airplane carrying passengers at night, the pilot may not
take off from, or land at, an airport unless - 
(i) The pilot has determined the wind
direction from an illuminated wind direction indicator or local ground communications or, in the case of takeoff,
that pilot-s personal observations; and
(ii) The limits of the area to be used
for landing or takeoff are clearly
shown by boundary or runway marker
lights. If the area to be used for takeoff
or landing is marked by flare pots or
lanterns, their use must be authorized
by the Administrator.
(e) A commercial operator and a pilot
used by the commercial operator in
conducting a domestic type operation,
flag type operation, or supplemental
type operation may operate an airplane
at an airport operated by the U.S. Government that is not certificated under
part 139 of this chapter only if that airport meets the equivalent - 
(1) Safety standards for airports certificated under part 139 of this chapter;
and

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