(a) No persons
may use an ATC transponder that is specified in 91.215(a), 121.345(c),
or Sec. 135.143(c) of this chapter unless, within the preceding
24 calendar months, the ATC transponder has been tested and inspected
and found to comply with Appendix F
of part 43 of this chapter; and
(b) Following any
installation or maintenance on an ATC transponder where data correspondence
error could be introduced, the integrated system has been tested,
inspected, and found to comply with paragraph (c), Appendix
E, of part 43 of this chapter.
(c) The tests and
inspections specified in this section must be conducted by--
(1) A certificated
repair station properly equipped to perform those functions and
holding--
(i) A radio
rating, Class III;
(ii) A limited
radio rating appropriate to the make and model transponder to
be tested;
(iii) A limited
rating appropriate to the test to be performed;
[(iv) deleted]
(2) A holder
of a continuous airworthiness maintenance program as provided
in part 121 or Sec. 135.411(a)(2) of this chapter; or
(3) The manufacturer
of the aircraft on which the transponder to be tested is installed,
if the transponder was installed by that manufacturer.
Amdt. 91-269,
Eff. 4/6/2003