Avionics News January 2018 - 15

FREQUENTLY ASKED
QUESTIONS: ADS-B

ADS-B Out
The following information is from the
Federal Aviation Regulations and Aircraft
Owners and Pilots Association website.

Question:

What ADS-B Out solution is right
for your customer?

Answer:

It all depends on what and where they
fly. 14 CFR 91.225 defines the ADS-B
requirements for a given airspace:
Generally, any airspace that currently
requires a transponder will require ADS-B
Out. Excluding any aircraft that was
not originally certificated with, or not
subsequently certified with, an installed
electrical system.
Installers as well as aircraft owners
need to understand the options. The AOPA
has a good ADS-B selection tool that will
help shops and their customers determine
the best solutions for their aircraft. The
system is good for light general aviation
determinations but has some limitations for
larger business aircraft flown internationally.
Another limitation of the ADS-B
selector tool is its basic focus of ADS-B

the FAA's acceptance of an item is communicated
to the submitter, the acceptance means that the item
meets the FAA's applicable criteria, and that the FAA
has no objection to the submitted item. Unless the
context of the situation clearly provides otherwise,
"accepted by the FAA" does not simply mean
receipt by the FAA (i.e., that the item was given to a
representative of the FAA and that person received
(accepted) it on behalf of the FAA).
Note: If an operator implements an item that should

Out compliance. While the tool proposes
the select the "best" solution, the AOPA's
determination of best is minimum regulatory
compliance. What the tool does not consider
is the added navigation benefit of upgrading
the onboard navigator to WAAS for
enhanced navigation, or the safety benefit of
ADS-B In technology.
Nonetheless, the ADS-B Out selector tool is
a good starting point.
The ADS-B Out selector tool can be
found at aopa.org/Pilot-Resources/AircraftOwnership/Technology/ADS-B/ADS-BSelector.
In addition, there is a relatively new legal
interpretation of flight ID language in 14
CFR 91.227(d)(8) dated Aug. 3, 2017, which
effectively states that the aircraft flight ID
must correspond with the call sign on the
flight plan. So, if the aircraft routinely uses
a call sign different than the registration
number and the call sign is not static, that is
the pilot changes the call sign based on the
flight, the owner needs an ADS-B Out system
that allows for cockpit configuration of the
aircraft's call sign/flight ID. q

have been submitted for FAA review and acceptance,
but was not submitted, that circumstance alone
does not mean the person would be in violation of
the underlying regulation requiring the item to be
"acceptable." That determination would require an
independent analysis of acceptability. At a minimum,
however, the person may be in violation of a regulation
requiring that the item be submitted.
Continued on following page
avionics news

*

january

2018

15

http://www.aopa.org/Pilot-Resources/Aircraft-ownership/Technology/ADS-B/ADS-BSelector http://www.aopa.org/Pilot-Resources/Aircraft-ownership/Technology/ADS-B/ADS-BSelector http://www.aopa.org/Pilot-Resources/Aircraft-ownership/Technology/ADS-B/ADS-BSelector

Table of Contents for the Digital Edition of Avionics News January 2018