14 C.F.R. § 121.187 Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.
Title 14 - Aeronautics and Space
(a) No person may list an airport as an alternate airport in a dispatch or flight release unless the airplane (at the weight anticipated at the time of arrival at the airport), based on the assumptions in §121.185, can be brought to a full stop landing, within 70 percent of the effective length of the runway. (b) This section does not apply to large nontransport category airplanes operated under §121.173(c). [Doc. No. 6258, 29 FR 19198, Dec. 31, 1964; 30 FR 130, Jan. 7, 1965, as amended by Amdt. 121–251, 60 FR 65928, Dec. 20, 1995]
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart I—Airplane Performance Operating Limitations
§ 121.187 Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.
