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95 

Federal Aviation Administration, DOT 

§ 121.161 

(1) Until December 20, 2010: 
(i) The airplane was type certificated 

in the normal category before July 1, 
1970, and meets special conditions 
issued by the Administrator for air-
planes intended for use in operations 
under part 135 of this chapter. 

(ii) The airplane was type certifi-

cated in the normal category before 
July 19, 1970, and meets the additional 
airworthiness standards in SFAR No. 
23, 14 CFR part 23. 

(iii) The airplane was type certifi-

cated in the normal category and 
meets the additional airworthiness 
standards in appendix A of part 135 of 
this chapter. 

(iv) The airplane was type certifi-

cated in the normal category and com-
plies with either section 1.(a) or 1.(b) of 
SFAR No. 41 of 14 CFR part 21. 

(2) The airplane was type certificated 

in the normal category, meets the ad-
ditional requirements described in 
paragraphs (f)(1)(i) through (f)(1)(iv) of 
this section, and meets the perform-
ance requirements in appendix K of 
this part. 

(g) 

Certain newly manufactured air-

planes. 

No certificate holder may oper-

ate an airplane under this part that 
was type certificated as described in 
paragraphs (f)(1)(i) through (f)(1)(iv) of 
this section and that was manufac-
tured after March 20, 1997, unless it 
meets the performance requirements in 
appendix K of this part. 

(h) 

Newly type certificated airplanes. 

No person may operate under this part 
an airplane for which the application 
for a type certificate is submitted after 
March 29, 1995, unless the airplane is 
type certificated under part 25 of this 
chapter. 

[Doc. No. 6258, 29 FR 19197, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65927, Dec. 
20, 1995; Amdt. 121–256, 61 FR 30434, June 14, 
1996] 

§ 121.159 Single-engine airplanes pro-

hibited. 

No certificate holder may operate a 

single-engine airplane under this part. 

[Doc. No. 28154, 60 FR 65927, Dec. 20, 1995] 

§ 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 stand-
ard conditions in still air) of 60 min-
utes for a two-engine airplane or 180 
minutes for a passenger-carrying air-
plane 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 ditch-
ing provisions of part 25 of this chap-
ter. 

(c) Until December 20, 2010, a certifi-

cate holder may operate, in an ex-
tended overwater operation, a non-
transport 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 Adminis-

trator 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 re-
ciprocating-engine-powered airplane 
over a route that contains a point far-
ther 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 pow-

ered airplanes with more than two en-
gines do not need to meet the require-
ments of paragraph (a)(1) of this sec-
tion 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]