658
14 CFR Ch. I (1–1–24 Edition)
§ 145.61
tachometers, airspeed indicators, pres-
sure gauges drift sights, magnetic com-
passes, altimeters, or similar mechan-
ical instruments.
(2)
Class 2:
Electrical. Self-syn-
chronous and electrical-indicating in-
struments and systems, including re-
mote indicating instruments, cylinder
head temperature gauges, or similar
electrical instruments.
(3)
Class 3:
Gyroscopic. An instru-
ment or system using gyroscopic prin-
ciples and motivated by air pressure or
electrical energy, including automatic
pilot control units, turn and bank indi-
cators, directional gyros, and their
parts, and flux gate and gyrosyn com-
passes.
(4)
Class 4:
Electronic. An instrument
whose operation depends on electron
tubes, transistors, or similar devices,
including capacitance type quantity
gauges, system amplifiers, and engine
analyzers.
(f)
Accessory ratings.
(1)
Class 1:
A me-
chanical accessory that depends on
friction, hydraulics, mechanical link-
age, or pneumatic pressure for oper-
ation, including aircraft wheel brakes,
mechanically driven pumps, carbu-
retors, aircraft wheel assemblies, shock
absorber struts and hydraulic servo
units.
(2)
Class 2:
An electrical accessory
that depends on electrical energy for
its operation, and a generator, includ-
ing starters, voltage regulators, elec-
tric motors, electrically driven fuel
pumps magnetos, or similar electrical
accessories.
(3)
Class 3:
An electronic accessory
that depends on the use of an electron
tube transistor, or similar device, in-
cluding supercharger, temperature, air
conditioning controls, or similar elec-
tronic controls.
§ 145.61 Limited ratings.
(a) The FAA may issue a limited rat-
ing to a certificated repair station that
maintains or alters only a particular
type of airframe, powerplant, propeller,
radio, instrument, or accessory, or part
thereof, or performs only specialized
maintenance requiring equipment and
skills not ordinarily performed under
other repair station ratings. Such a
rating may be limited to a specific
model aircraft, engine, or constituent
part, or to any number of parts made
by a particular manufacturer.
(b) The FAA issues limited ratings
for—
(1) Airframes of a particular make
and model;
(2) Engines of a particular make and
model;
(3) Propellers of a particular make
and model;
(4) Instruments of a particular make
and model;
(5) Radio equipment of a particular
make and model;
(6) Accessories of a particular make
and model;
(7) Landing gear components;
(8) Floats, by make;
(9) Nondestructive inspection, test-
ing, and processing;
(10) Emergency equipment;
(11) Rotor blades, by make and
model;
(12) Aircraft fabric work;
(13) Any other purpose for which the
FAA finds the applicant’s request is ap-
propriate.
(c) For a limited rating for special-
ized services, the operations specifica-
tions of the repair station must con-
tain the specification used to perform
the specialized service. The specifica-
tion may be—
(1) A civil or military specification
currently used by industry and ap-
proved by the FAA, or
(2) A specification developed by the
applicant and approved by the FAA.
[Docket No. FAA–1999–5836, 66 FR 41117, Aug.
6, 2001, as amended by Docket FAA–2016–8744,
Amdt. 145–31, 81 FR 49163, July 27, 2016]
Subpart C—Housing, Facilities,
Equipment, Materials, and Data
S
OURCE
: Docket No. FAA–1999–5836, 66 FR
41117, Aug. 6, 2001, unless otherwise noted.
§ 145.101 General.
A certificated repair station must
provide housing, facilities, equipment,
materials, and data that meet the ap-
plicable requirements for the issuance
of the certificate and ratings the repair
station holds.