453
Federal Aviation Administration, DOT
§ 135.156
(TSO)–C151. The airplane must also in-
clude an approved terrain situational
awareness display.
(2) No person may operate a turbine-
powered airplane configured with 6 to 9
passenger seats, excluding any pilot
seat, unless that airplane is equipped
with an approved terrain awareness
and warning system that meets as a
minimum the requirements for Class B
equipment in Technical Standard Order
(TSO)–C151.
(b)
Airplanes manufactured on or before
March 29, 2002:
(1) No person may operate a turbine-
powered airplane configured with 10 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 meets the requirements
for Class A equipment in Technical
Standard Order (TSO)–C151. The air-
plane must also include an approved
terrain situational awareness display.
(2) No person may operate a turbine-
powered airplane configured with 6 to 9
passenger seats, excluding any pilot
seat, after March 29, 2005, unless that
airplane is equipped with an approved
terrain awareness and warning system
that meets as a minimum the require-
ments for Class B equipment in Tech-
nical 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.
[Doc. No. 29312, 65 FR 16755, Mar. 29, 2000]
§ 135.155 Fire extinguishers: Pas-
senger-carrying aircraft.
No person may operate an aircraft
carrying passengers unless it is
equipped with hand fire extinguishers
of an approved type for use in crew and
passenger compartments as follows—
(a) The type and quantity of extin-
guishing agent must be suitable for the
kinds of fires likely to occur;
(b) At least one hand fire extin-
guisher must be provided and conven-
iently located on the flight deck for
use by the flight crew; and
(c) At least one hand fire extin-
guisher must be conveniently located
in the passenger compartment of each
aircraft having a passenger seating
configuration, excluding any pilot seat,
of at least 10 seats but less than 31
seats.
§ 135.156 Flight data recorders: fil-
tered data.
(a) A flight data signal is filtered
when an original sensor signal has been
changed in any way, other than
changes necessary to:
(1) Accomplish analog to digital con-
version of the signal;
(2) Format a digital signal to be
DFDR compatible; or
(3) Eliminate a high frequency com-
ponent of a signal that is outside the
operational bandwidth of the sensor.
(b) An original sensor signal for any
flight recorder parameter required to
be recorded under § 135.152 may be fil-
tered only if the recorded signal value
continues to meet the requirements of
Appendix D or F of this part, as appli-
cable.
(c) For a parameter described in
§ 135.152(h)(12) through (17), (42), or (88),
or the corresponding parameter in Ap-
pendix D of this part, if the recorded
signal value is filtered and does not
meet the requirements of Appendix D
or F of this part, as applicable, the cer-
tificate holder must:
(1) Remove the filtering and ensure
that the recorded signal value meets
the requirements of Appendix D or F of
this part, as applicable; or
(2) Demonstrate by test and analysis
that the original sensor signal value
can be reconstructed from the recorded
data. This demonstration requires
that:
(i) The FAA determine that the pro-
cedure and test results submitted by
the certificate holder as its compliance
with paragraph (c)(2) of this section are
repeatable; and
(ii) The certificate holder maintains
documentation of the procedure re-
quired to reconstruct the original sen-
sor signal value. This documentation is