[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR121.161]

[Page 749-750]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 121_OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS--
 
                     Subpart H_Aircraft Requirements
 
Sec. 121.161  Airplane limitations: Type of route.

    (a) Except as provided in paragraph (e) of this section, unless 
approved by the Administrator in accordance with Appendix P of this part 
and authorized in the certificate holder's operations specifications, no 
certificate holder may operate a turbine-engine-powered airplane over a 
route that contains a point--
    (1) Farther than a flying time from an Adequate Airport (at a one-
engine-inoperative cruise speed under standard conditions in still air) 
of 60 minutes for a two-engine airplane or 180 minutes for a passenger-
carrying airplane with more than two engines;
    (2) Within the North Polar Area; or
    (3) Within the South Polar Area.
    (b) Except as provided in paragraph (c) of this section, no 
certificate holder may operate a land airplane (other than a DC-3, C-46, 
CV-240, CV-340, CV-440, CV-580, CV-600, CV-640, or Martin 404) in an 
extended overwater operation unless it is certificated or approved as 
adequate for ditching under the ditching provisions of part 25 of this 
chapter.

[[Page 750]]

    (c) Until December 20, 2010, a certificate holder may operate, in an 
extended overwater operation, a nontransport category land airplane type 
certificated after December 31, 1964, that was not certificated or 
approved as adequate for ditching under the ditching provisions of part 
25 of this chapter.
    (d) Unless authorized by the Administrator based on the character of 
the terrain, the kind of operation, or the performance of the airplane 
to be used, no certificate holder may operate a reciprocating-engine-
powered airplane over a route that contains a point farther than 60 
minutes flying time (at a one-engine-inoperative cruise speed under 
standard conditions in still air) from an Adequate Airport.
    (e) Operators of turbine-engine powered airplanes with more than two 
engines do not need to meet the requirements of paragraph (a)(1) of this 
section until February 15, 2008.

[Doc. No. 7329, 31 FR 13078, Oct. 8, 1966 as amended by Amdt. 121-162, 
45 FR 46739, July 10, 1980; Amdt. 121-251, 60 FR 65927, Dec. 20, 1995; 
Amdt. 121-329, 72 FR 1879, Jan. 16, 2007]