94 

14 CFR Ch. I (1–1–19 Edition) 

§ 121.203 

minute greater than the rate in the ap-
proved performance data. Before ap-
proving such a procedure, the Adminis-
trator considers the following for the 
route, route segment, or area con-
cerned: 

(1) The reliability of wind and weath-

er forecasting. 

(2) The location and kinds of naviga-

tion aids. 

(3) The prevailing weather condi-

tions, particularly the frequency and 
amount of turbulence normally en-
countered. 

(4) Terrain features. 
(5) Air traffic control problems. 
(6) Any other operational factors 

that affect the operation. 

(c) For the purposes of this section, it 

is assumed that— 

(1) The critical engine is inoperative; 
(2) The propeller of the inoperative 

engine is in the minimum drag posi-
tion; 

(3) The wing flaps and landing gear 

are in the most favorable position; 

(4) The operating engines are oper-

ating at the maximum continuous 
power available; 

(5) The airplane is operating in stand-

ard atmosphere; and 

(6) The weight of the airplane is pro-

gressively reduced by the anticipated 
consumption of fuel and oil. 

§ 121.203

Nontransport category air-

planes: Landing limitations: Des-
tination airport. 

(a) No person operating a non-

transport category airplane may take 
off that airplane at a weight that— 

(1) Allowing for anticipated consump-

tion of fuel and oil, is greater than the 
weight that would allow a full stop 
landing within 60 percent of the effec-
tive length of the most suitable run-
way at the destination airport; and 

(2) Is greater than the weight allow-

able if the landing is to be made on the 
runway— 

(i) With the greatest effective length 

in still air; and 

(ii) Required by the probable wind, 

taking into account not more than 50 
percent of the headwind component or 
not less than 150 percent of the tail-
wind component. 

(b) For the purposes of this section, 

it is assumed that— 

(1) The airplane passes directly over 

the intersection of the obstruction 
clearance plane and the runway at a 
height of 50 feet in a steady gliding ap-
proach at a true indicated airspeed of 
at least 1.3 

V

S

o

; 

(2) The landing does not require ex-

ceptional pilot skill; and 

(3) The airplane is operating in stand-

ard atmosphere. 

§ 121.205

Nontransport category air-

planes: Landing limitations: Alter-
nate airport. 

No person may list an airport as an 

alternate airport in a dispatch or flight 
release for a nontransport category air-
plane unless that airplane (at the 
weight anticipated at the time of ar-
rival) based on the assumptions con-
tained in § 121.203, can be brought to a 
full stop landing within 70 percent of 
the effective length of the runway. 

§ 121.207

Provisionally certificated air-

planes: Operating limitations. 

In addition to the limitations in 

§ 91.317 of this chapter, the following 
limitations apply to the operation of 
provisionally certificated airplanes by 
certificate holders: 

(a) In addition to crewmembers, each 

certificate holder may carry on such an 
airplane only those persons who are 
listed in § 121.547(c) or who are specifi-
cally authorized by both the certificate 
holder and the Administrator. 

(b) Each certificate holder shall keep 

a log of each flight conducted under 
this section and shall keep accurate 
and complete records of each inspec-
tion made and all maintenance per-
formed on the airplane. The certificate 
holder shall make the log and records 
made under this section available to 
the manufacturer and the Adminis-
trator. 

[Doc. No. 28154, 61 FR 2611, Jan. 26, 1996] 

Subpart J—Special Airworthiness 

Requirements 

S

OURCE

: Docket No. 6258, 29 FR 19202, Dec. 

31, 1964, unless otherwise noted. 

§ 121.211

Applicability. 

(a) This subpart prescribes special 

airworthiness requirements applicable 

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