Federal Aviation Administration, DOT

Section 91.413

(2) A schedule for performing the inspections that must be performed
under the program expressed in terms
of the time in service, calendar time,
number of system operations, or any
combination of these.
(h) Changes from one inspection program to another. When an operator
changes from one inspection program
under paragraph (f) of this section to
another, the time in service, calendar
times, or cycles of operation accumulated under the previous program must
be applied in determining inspection
due times under the new program.
(Approved by the Office of Management and
Budget under control number 2120-0005)
[Doc. No. 18334, 54 FR 34311, Aug. 18, 1989;
Amdt. 91-211, 54 FR 41211, Oct. 5, 1989; Amdt.
91-267, 66 FR 21066, Apr. 27, 2001; Amdt. 91-282,
69 FR 44882, July 27, 2004; Docket FAA-2018-
0119, Amdt. 91-350, 83 FR 9171, Mar. 5, 2018]

Section 91.410

[Reserved]

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Section 91.411 Altimeter system and altitude
reporting equipment tests and inspections.
(a) No person may operate an airplane, or helicopter, in controlled airspace under IFR unless - 
(1) Within the preceding 24 calendar
months, each static pressure system,
each altimeter instrument, and each
automatic pressure altitude reporting
system has been tested and inspected
and found to comply with appendices E
and F of part 43 of this chapter;
(2) Except for the use of system drain
and alternate static pressure valves,
following any opening and closing of
the static pressure system, that system
has been tested and inspected and
found to comply with paragraph (a),
appendix E, of part 43 of this chapter;
and
(3) Following installation or maintenance on the automatic pressure altitude reporting system of the 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.
(b) The tests required by paragraph
(a) of this section must be conducted
by - 

(1) The manufacturer of the airplane,
or helicopter, on which the tests and
inspections are to be performed;
(2) A certificated repair station properly equipped to perform those functions and holding - 
(i) An instrument rating, Class I;
(ii) A limited instrument rating appropriate to the make and model of appliance to be tested;
(iii) A limited rating appropriate to
the test to be performed;
(iv) An airframe rating appropriate
to the airplane, or helicopter, to be
tested; or
(3) A certificated mechanic with an
airframe rating (static pressure system
tests and inspections only).
(c) Altimeter and altitude reporting
equipment approved under Technical
Standard Orders are considered to be
tested and inspected as of the date of
their manufacture.
(d) No person may operate an airplane, or helicopter, in controlled airspace under IFR at an altitude above
the maximum altitude at which all altimeters and the automatic altitude reporting system of that airplane, or helicopter, have been tested.
[Doc. No. 18334, 54 FR 34308, Aug. 18, 1989, as
amended by Amdt. 91-269, 66 FR 41116, Aug. 6,
2001; 72 FR 7739, Feb. 20, 2007]

Section 91.413 ATC transponder tests and inspections.
(a) No persons may use an ATC transponder that is specified in 91.215(a),
121.345(c), or Section 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;

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