Avionics News September 2019 - 19

FREQUENTLY ASKED
QUESTIONS: ADS-B

Revision to ADS-B
Out equipment and
use requirements
Question:
For avionics shops that support law
enforcement organizations, what is
important to understand?
Answer:
On July 18, 2019, the Federal Aviation
Administration published an interim final
rule removing the transmission requirement
for sensitive operations conducted by
federal, state and local governments.
Effective July 18, 2019, this interim
final rule modifies the requirement that all
aircraft equipped with Automatic Dependent
Surveillance-Broadcast Out must transmit
at all times. This rulemaking provides an
exception to ADS-B requirements, removing
the transmission requirement for sensitive
operations conducted by federal, state
and local government entities in matters
of national defense, homeland security,
intelligence and law enforcement.
The changes provide relief to those
federal, state and local government agencies
that operate aircraft equipped with ADS-B
Out but need the ability to terminate
the transmission signal when conducting
sensitive national defense, homeland security,
intelligence and law enforcement missions
that could be compromised by transmitting
real-time identification and positional flight
information over ADS-B. This rulemaking
also allows the FAA to except certain aircraft
from operating a transponder or transmitting
ADS-B Out, when doing so would jeopardize
air traffic control functions.
The FAA has amended section 91.215 by
revising paragraph (c) to read as follows:

§ 91.215 ATC transponder and altitude
reporting equipment and use.
*****
(c) Transponder-on operation. While in the
airspace as specified in paragraph (b) of
this section or in all controlled airspace,
each person operating an aircraft equipped
with an operable ATC transponder
maintained in accordance with § 91.413
of this part shall operate the transponder,
including Mode C equipment if installed,
and shall reply on the appropriate code
or as assigned by ATC, unless otherwise
directed by ATC when transmitting would
jeopardize the safe execution of air traffic
control functions.
The FAA is also amending section 91.225
by revising paragraph (f) to read as follows:
§ 91.225 Automatic Dependent
Surveillance-Broadcast (ADS-B) Out
equipment and use.
*****
(f) Each person operating an aircraft
equipped with ADS-B Out must operate
this equipment in the transmit mode at all
times unless -
(1) Otherwise authorized by the FAA
when the aircraft is performing a sensitive
government mission for national defense,
homeland security, intelligence or law
enforcement purposes and transmitting
would compromise the operations security
of the mission or pose a safety risk to the
aircraft, crew, or people and property in
the air or on the ground; or
(2) Otherwise directed by ATC when
transmitting would jeopardize the safe
execution of air traffic control functions. q

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september

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Avionics News September 2019

Table of Contents for the Digital Edition of Avionics News September 2019

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Avionics News September 2019 - No label
Avionics News September 2019 - Cover1
Avionics News September 2019 - Cover2
Avionics News September 2019 - 1
Avionics News September 2019 - 2
Avionics News September 2019 - 3
Avionics News September 2019 - 4
Avionics News September 2019 - 5
Avionics News September 2019 - 6
Avionics News September 2019 - 7
Avionics News September 2019 - 8
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Avionics News September 2019 - 18
Avionics News September 2019 - 19
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Avionics News September 2019 - Cover3
Avionics News September 2019 - Cover4
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