675
Federal Aviation Administration, DOT
§ 29.1555
(a) When markings are on the cover
glass of the instrument there must be
means to maintain the correct align-
ment of the glass cover with the face of
the dial; and
(b) Each arc and line must be wide
enough, and located to be clearly visi-
ble to the pilot.
§ 29.1545
Airspeed indicator.
(a) Each airspeed indicator must be
marked as specified in paragraph (b) of
this section, with the marks located at
the corresponding indicated airspeeds.
(b) The following markings must be
made:
(1) A red line:
(i) For rotorcraft other than heli-
copters, at V
NE
.
(ii) For helicopters, at V
NE
(power-
on).
(iii) For helicopters, at V
NE
(power-
off). If V
NE
(power-off) is less than V
NE
(power-on) and both are simulta-
neously displayed, the red line at V
NE
(power-off) must be clearly distinguish-
able from the red line at V
NE
(power-
on).
(2) [Reserved]
(3) For the caution range, a yellow
range.
(4) For the normal operating range, a
green or unmarked range.
(Secs. 313(a), 601, 603, 604, and 605 of the Fed-
eral Aviation Act of 1958 (49 U.S.C. 1354(a),
1421, 1423, 1424, and 1425); and sec. 6(c), Dept.
of Transportation Act (49 U.S.C. 1655(c)))
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29–15, 43 FR 2327, Jan. 16,
1978; 43 FR 3900, Jan. 30, 1978; Amdt. 29–17, 43
FR 50602, Oct. 30, 1978; Amdt. 29–59, 88 FR
8740, Feb. 10, 2023]
§ 29.1547
Magnetic direction indicator.
(a) A placard meeting the require-
ments of this section must be installed
on or near the magnetic direction indi-
cator.
(b) The placard must show the cali-
bration of the instrument in level
flight with the engines operating.
(c) The placard must state whether
the calibration was made with radio re-
ceivers on or off.
(d) Each calibration reading must be
in terms of magnetic heading in not
more than 45 degree increments.
§ 29.1549
Powerplant instruments.
For each required powerplant instru-
ment, as appropriate to the type of in-
struments—
(a) Each maximum and, if applicable,
minimum safe operating limit must be
marked with a red line;
(b) Each normal operating range
must be marked as a green or un-
marked range;
(c) Each takeoff and precautionary
range must be marked with a yellow
range or yellow line;
(d) Each engine or rotor range that is
restricted because of excessive vibra-
tion stresses must be marked with red
ranges or red lines; and
(e) Each OEI limit or approved oper-
ating range must be marked to be
clearly differentiated from the mark-
ings of paragraphs (a) through (d) of
this section except that no marking is
normally required for the 30-second
OEI limit.
[Amdt. 29–12, 41 FR 55474, Dec. 20, 1976, as
amended by Amdt. 29–26, 53 FR 34220, Sept. 2,
1988; Amdt. 29–34, 59 FR 47769, Sept. 16, 1994;
Amdt. 29–59, 88 FR 8739, Feb. 10, 2023]
§ 29.1551
Oil quantity indicator.
Each oil quantity indicator must be
marked with enough increments to in-
dicate readily and accurately the quan-
tity of oil.
§ 29.1553
Fuel quantity indicator.
If the unusable fuel supply for any
tank exceeds one gallon, or five per-
cent of the tank capacity, whichever is
greater, a red arc must be marked on
its indicator extending from the cali-
brated zero reading to the lowest read-
ing obtainable in level flight.
§ 29.1555
Control markings.
(a) Each cockpit control, other than
primary flight controls or control
whose function is obvious, must be
plainly marked as to its function and
method of operation.
(b) For powerplant fuel controls—
(1) Each fuel tank selector valve con-
trol must be marked to indicate the po-
sition corresponding to each tank and
to each existing cross feed position;
(2) If safe operation requires the use
of any tanks in a specific sequence,
that sequence must be marked on, or
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§ 29.1557
adjacent to, the selector for those
tanks; and
(3) Each valve control for any engine
of a multiengine rotorcraft must be
marked to indicate the position cor-
responding to each engine controlled.
(c) Usable fuel capacity must be
marked as follows:
(1) For fuel systems having no selec-
tor controls, the usable fuel capacity of
the system must be indicated at the
fuel quantity indicator unless it is:
(i) Provided by another system or
equipment readily accessible to the
pilot; and
(ii) Contained in the limitations sec-
tion of the rotorcraft flight manual.
(2) For fuel systems having selector
controls, the usable fuel capacity
available at each selector control posi-
tion must be indicated near the selec-
tor control.
(d) For accessory, auxiliary, and
emergency controls—
(1) Each essential visual position in-
dicator, such as those showing rotor
pitch or landing gear position, must be
marked so that each crewmember can
determine at any time the position of
the unit to which it relates; and
(2) Each emergency control must be
red and must be marked as to method
of operation.
(e) For rotorcraft incorporating re-
tractable landing gear, the maximum
landing gear operating speed must be
displayed in clear view of the pilot.
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29–12, 41 FR 55474, Dec. 20,
1976; Amdt. 29–24, 49 FR 44440, Nov. 6, 1984;
Amdt. 29–59, 88 FR 8740, Feb. 10, 2023]
§ 29.1557
Miscellaneous markings and
placards.
(a)
Baggage and cargo compartments,
and ballast location. Each baggage and
cargo compartment, and each ballast
location must have a placard stating
any limitations on contents, including
weight, that are necessary under the
loading requirements.
(b)
Seats. If the maximum allowable
weight to be carried in a seat is less
than 170 pounds, a placard stating the
lesser weight must be permanently at-
tached to the seat structure.
(c)
Fuel and oil filler openings. The fol-
lowing apply:
(1) Fuel filler openings must be
marked at or near the filler cover
with—
(i) The word ‘‘fuel’’;
(ii) For reciprocating engine powered
rotorcraft, the minimum fuel grade;
(iii) For turbine-engine-powered
rotorcraft, the permissible fuel des-
ignations, except that if impractical,
this information may be included in
the rotorcraft flight manual, and the
fuel filler may be marked with an ap-
propriate reference to the flight man-
ual; and
(iv) For pressure fueling systems, the
maximum permissible fueling supply
pressure and the maximum permissible
defueling pressure.
(2) Oil filler openings must be
marked at or near the filler cover with
the word ‘‘oil’’.
(d)
Emergency exit placards. Each
placard and operating control for each
emergency exit must differ in color
from the surrounding fuselage surface
as prescribed in § 29.811(f)(2). A placard
must be near each emergency exit con-
trol and must clearly indicate the loca-
tion of that exit and its method of op-
eration.
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29–3, 33 FR 971, Jan. 26,
1968; Amdt. 29–12, 41 FR 55474, Dec. 20, 1976;
Amdt. 29–26, 53 FR 34220, Sept. 2, 1988; Amdt.
29–58, 87 FR 75711, Dec. 9, 2022]
§ 29.1559
Limitations placard.
There must be a placard in clear view
of the pilot that specifies the kinds of
operations (VFR, IFR, day, night, or
icing) for which the rotorcraft is ap-
proved.
[Amdt. 29–24, 49 FR 44440, Nov. 6, 1984]
§ 29.1561
Safety equipment.
(a) Each safety equipment control to
be operated by the crew in emergency,
such as controls for automatic liferaft
releases, must be plainly marked as to
its method of operation.
(b) Each location, such as a locker or
compartment, that carries any fire ex-
tinguishing, signaling, or other life
saving equipment, must be so marked.
(c) Stowage provisions for required
emergency equipment must be con-
spicuously marked to identify the con-
tents and facilitate removal of the
equipment.
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