Section 23.2520

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

Section 23.2520 High-intensity
Fields (HIRF) protection.

Radiated

(a) Each electrical and electronic
systems that perform a function, the
failure of which would prevent the continued safe flight and landing of the
airplane, must be designed and installed such that - 
(1) The function at the airplane level
is not adversely affected during and
after the time the airplane is exposed
to the HIRF environment; and
(2) The system recovers normal operation of that function in a timely manner after the airplane is exposed to the
HIRF environment, unless the system-s
recovery conflicts with other operational or functional requirements of
the system.
(b) For airplanes approved for IFR
operations, each electrical and electronic system that performs a function, the failure of which would significantly reduce the capability of the airplane or the ability of the flightcrew to
respond to an adverse operating condition, must be designed and installed
such that the system recovers normal
operation of that function in a timely
manner after the airplane is exposed to
the HIRF environment.
Section 23.2525 System power generation,
storage, and distribution.

spaschal on DSK3GDR082PROD with CFR

The power generation, storage, and
distribution for any system must be designed and installed to - 
(a) Supply the power required for operation of connected loads during all
intended operating conditions;
(b) Ensure no single failure or malfunction of any one power supply, distribution system, or other utilization
system will prevent the system from
supplying the essential loads required
for continued safe flight and landing;
and
(c) Have enough capacity, if the primary source fails, to supply essential
loads, including non-continuous essential loads for the time needed to complete the function required for continued safe flight and landing.
Section 23.2530
ing.

External and cockpit light-

(a) The applicant must design and install all lights to minimize any adverse

effects
on
the
performance
of
flightcrew duties.
(b) Any position and anti-collision
lights, if required by part 91 of this
chapter, must have the intensities,
flash rate, colors, fields of coverage,
and other characteristics to provide
sufficient time for another aircraft to
avoid a collision.
(c) Any position lights, if required by
part 91 of this chapter, must include a
red light on the left side of the airplane, a green light on the right side of
the airplane, spaced laterally as far
apart as practicable, and a white light
facing aft, located on an aft portion of
the airplane or on the wing tips.
(d) Any taxi and landing lights must
be designed and installed so they provide sufficient light for night operations.
(e) For seaplanes or amphibian airplanes, riding lights must provide a
white light visible in clear atmospheric
conditions.
Section 23.2535 Safety equipment.
Safety and survival equipment, required by the operating rules of this
chapter, must be reliable, readily accessible, easily identifiable, and clearly
marked to identify its method of operation.
Section 23.2540 Flight in icing conditions.
An applicant who requests certification for flight in icing conditions defined in part 1 of appendix C to part 25
of this chapter, or an applicant who requests certification for flight in these
icing conditions and any additional atmospheric icing conditions, must show
the following in the icing conditions
for which certification is requested:
(a) The ice protection system provides for safe operation.
(b) The airplane design must provide
protection from stalling when the
autopilot is operating.
Section 23.2545 Pressurized
systems
elements.
Pressurized systems must withstand
appropriate proof and burst pressures.
Section 23.2550 Equipment containing highenergy rotors.
Equipment containing high-energy
rotors must be designed or installed to

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