726 

14 CFR Ch. I (1–1–24 Edition) 

§ 91.221 

(4) Be tested without special equip-

ment to determine proper operation of 
the alerting signals; and 

(5) Accept necessary barometric pres-

sure settings if the system or device 
operates on barometric pressure. How-
ever, for operation below 3,000 feet 
AGL, the system or device need only 
provide one signal, either visual or 
aural, to comply with this paragraph. 
A radio altimeter may be included to 
provide the signal if the operator has 
an approved procedure for its use to de-
termine DA/DH or MDA, as appro-
priate. 

(c) Each operator to which this sec-

tion applies must establish and assign 
procedures for the use of the altitude 
alerting system or device and each 
flight crewmember must comply with 
those procedures assigned to him. 

(d) Paragraph (a) of this section does 

not apply to any operation of an air-
plane that has an experimental certifi-
cate or to the operation of any airplane 
for the following purposes: 

(1) Ferrying a newly acquired air-

plane from the place where possession 
of it was taken to a place where the al-
titude alerting system or device is to 
be installed. 

(2) Continuing a flight as originally 

planned, if the altitude alerting system 
or device becomes inoperative after the 
airplane has taken off; however, the 
flight may not depart from a place 
where repair or replacement can be 
made. 

(3) Ferrying an airplane with any in-

operative altitude alerting system or 
device from a place where repairs or re-
placements cannot be made to a place 
where it can be made. 

(4) Conducting an airworthiness 

flight test of the airplane. 

(5) Ferrying an airplane to a place 

outside the United States for the pur-
pose of registering it in a foreign coun-
try. 

(6) Conducting a sales demonstration 

of the operation of the airplane. 

(7) Training foreign flight crews in 

the operation of the airplane before 
ferrying it to a place outside the 
United States for the purpose of reg-
istering it in a foreign country. 

[Doc. No. 18334, 54 FR 34304, Aug. 18, 1989, as 
amended by Amdt. 91–296, 72 FR 31679, June 
7, 2007] 

§ 91.221

Traffic alert and collision 

avoidance system equipment and 
use. 

(a) 

All airspace: U.S.-registered civil 

aircraft.  Any traffic alert and collision 
avoidance system installed in a U.S.- 
registered civil aircraft must be ap-
proved by the Administrator. 

(b) 

Traffic alert and collision avoidance 

system, operation required. Each person 
operating an aircraft equipped with an 
operable traffic alert and collision 
avoidance system shall have that sys-
tem on and operating. 

§ 91.223

Terrain awareness and warn-

ing system. 

(a) 

Airplanes manufactured after March 

29, 2002. Except as provided in para-
graph (d) of this section, no person may 
operate a turbine-powered U.S.-reg-
istered airplane configured with six or 
more passenger seats, excluding any 
pilot seat, unless that airplane is 
equipped with an approved terrain 
awareness and warning system that as 
a minimum meets the requirements for 
Class B equipment in Technical Stand-
ard Order (TSO)–C151. 

(b) 

Airplanes manufactured on or before 

March 29, 2002. Except as provided in 
paragraph (d) of this section, no person 
may operate a turbine-powered U.S.- 
registered airplane configured with six 
or more passenger seats, excluding any 
pilot seat, after March 29, 2005, unless 
that airplane is equipped with an ap-
proved terrain awareness and warning 
system that as a minimum meets the 
requirements for Class B equipment in 
Technical Standard Order (TSO)–C151. 

(Approved by the Office of Management and 
Budget under control number 2120–0631) 

(c) 

Airplane Flight Manual. The Air-

plane Flight Manual shall contain ap-
propriate procedures for— 

(1) The use of the terrain awareness 

and warning system; and 

(2) Proper flight crew reaction in re-

sponse to the terrain awareness and 
warning system audio and visual warn-
ings. 

(d) 

Exceptions.  Paragraphs (a) and (b) 

of this section do not apply to— 

(1) Parachuting operations when con-

ducted entirely within a 50 nautical 
mile radius of the airport from which 
such local flight operations began. 

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