Avionics News September 2017 - 12

F R O M
R I C
P E R I
A EA V I C E P R ES I D E N T O F G OV E R N M E N T & I N D U ST RY A F FA I RS

The Aircraft Electronics Association's international membership continues to grow. Currently, the AEA represents
avionics businesses in more than 40 countries throughout the world. To better serve the needs of the AEA's international
membership, the "International News and Regulatory Updates" section of Avionics News offers a greater focus on
international regulatory activity, international industry news and an international "Frequently Asked Questions" column
to help promote standardization. If you have comments about this section, send emails to avionicsnews@aea.net.

UNITED STATES

News & Regulatory Updates
ADS-B Out Installations
On Aug. 3, 2017, the Federal Aviation Administration
published a legal interpretation regarding Flight ID that
essentially requires the aircraft Flight ID (either aircraft
call sign or aircraft registration number) to be accurate
to the aircraft's flight plan. Therefore, if the aircraft
operates or is likely to operate with a dynamic call sign,
the ADS-B Out installation must be able to support pilotentered Flight ID in order to be rule compliant.
This is not to say that approved equipment is
deficient. The minimum operational performance
standards for the equipment allows for either
information to be programmed into the equipment. It is
a sales issue, in that "one-size ADS-B Out doesn't fit
all flight missions."
According to the Aug. 3, 2017, legal interpretation,
citing 14 CFR 91.227(d)(8), the FAA states: "It is
clear from the NPRM and final rule preambles that
§ 91.227(d)(8) is meant to ensure that ATC is able
to correlate flight plan information with information
presented on the radar display. Therefore, to satisfy
§ 91.227(d)(8), a pilot would have to provide the same
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avionics news

september

2017

call sign on his or her flight plan as he or she transmits
out using ADS-B."
14 CFR 91.227(d)(8) states, in part:
§ 91.227 Automatic Dependent SurveillanceBroadcast Out equipment performance
requirements.
(d) Minimum Broadcast Message Element Set
for ADS-B Out. Each aircraft must broadcast the
following information, as defined in TSO-C166b
or TSO-C154c. The pilot must enter information
for message elements listed in paragraphs (d)
(7) through (d)(10) of this section during the
appropriate phase of flight.
(8) An indication of the aircraft's call sign that
is submitted on the flight plan, or the aircraft's
registration number, except when the pilot has not
filed a flight plan, has not requested ATC services,
and is using a TSO-C154c self-assigned temporary
24-bit address.
This topic will be discussed at the upcoming AEA
Connect Conferences throughout North America.

Use of ADS-B Out in support of
RVSM operations
Of particular interest to air operators, this notice
of proposed rulemaking would revise the FAA's
requirements for application to operate in reduced

Table of Contents for the Digital Edition of Avionics News September 2017