Section 25.1551

14 CFR Ch. I (1-1-19 Edition)

(d) Each engine, auxiliary power
unit, or propeller speed range that is
restricted because of excessive vibration stresses must be marked with red
arcs or red lines.
[Amdt. 25-40, 42 FR 15044, Mar. 17, 1977]

Section 25.1551

Oil quantity indication.

Each oil quantity indicating means
must be marked to indicate the quantity of oil readily and accurately.
[Amdt. 25-72, 55 FR 29786, July 20, 1990]

Section 25.1553

Fuel quantity indicator.

If the unusable fuel supply for any
tank exceeds one gallon, or five percent of the tank capacity, whichever is
greater, a red arc must be marked on
its indicator extending from the calibrated zero reading to the lowest reading obtainable in level flight.

spaschal on DSK3GDR082PROD with CFR

Section 25.1555

Control markings.

(a) Each cockpit control, other than
primary flight controls and controls
whose function is obvious, must be
plainly marked as to its function and
method of operation.
(b) Each aerodynamic control must
be marked under the requirements of
SectionSection 25.677 and 25.699.
(c) For powerplant fuel controls - 
(1) Each fuel tank selector control
must be marked to indicate the position 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
adjacent to, the selector for those
tanks; and
(3) Each valve control for each engine
must be marked to indicate the position corresponding to each engine controlled.
(d) For accessory, auxiliary, and
emergency controls - 
(1) Each emergency control (including each fuel jettisoning and fluid shutoff must be colored red; and
(2) Each visual indicator required by
Section 25.729(e) must be marked so that the
pilot can determine at any time when
the wheels are locked in either extreme
position, if retractable landing gear is
used.

Section 25.1557 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.
However,
underseat compartments designed for
the storage of carry-on articles weighing not more than 20 pounds need not
have a loading limitation placard.
(b) Powerplant fluid filler openings.
The following apply:
(1) Fuel filler openings must be
marked at or near the filler cover
with - 
(i) The word  - fuel - ;
(ii) For reciprocating engine powered
airplanes, the minimum fuel grade;
(iii) For turbine engine powered airplanes, the permissible fuel designations; 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 - .
(3) Augmentation fluid filler openings must be marked at or near the
filler cover to identify the required
fluid.
(c) Emergency exit placards. Each
emergency exit placard must meet the
requirements of Section 25.811.
(d) Doors. Each door that must be
used in order to reach any required
emergency exit must have a suitable
placard stating that the door is to be
latched in the open position during
takeoff and landing.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as
amended by Amdt. 25-32, 37 FR 3972, Feb. 24,
1972; Amdt. 25-38, 41 FR 55468, Dec. 20, 1976;
Amdt. 25-72, 55 FR 29786, July 20, 1990]

Section 25.1561

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 extinguishing, signaling, or other life

368

VerDate Sep<11>2014

12:50 Apr 30, 2019

Jkt 247046

PO 00000

Frm 00378

Fmt 8010

Sfmt 8010

Y:\SGML\247046.XXX

247046