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§ 135.180
Traffic Alert and Collision Avoidance System.
(a) Unless otherwise authorized by the Administrator, after December 31, 1995, no person may operate a turbine powered airplane that has a passenger seat configuration, excluding any pilot seat, of 10 to 30 seats unless it is equipped with an approved traffic alert and collision avoidance system. If a TCAS II system is installed, it must be capable of coordinating with TCAS units that meet TSO C-119.
(b) The airplane flight manual required by § 135.21 of this part shall contain the following information on the TCAS I system required by this section:
(1) Appropriate procedures for—
(i) The use of the equipment; and
(ii) Proper flightcrew action with respect to the equipment operation.
(2) An outline of all input sources that must be operating for the TCAS to function properly.
[Doc. No. 25355, 54 FR 951, Jan. 10, 1989, as amended by Amdt. 135-54, 59 FR 67587, Dec. 29, 1994]