Released 10 February, 2017
FEDERAL AVIATION ADMINISTRATION
FLIGHT ADVISORY GPS INTERFERENCE TESTING
ELECTRONIC PROVING GROUND (EPG) 17-01
14 -23 February, 2017
Sierra Vista, AZ
GPS testing is scheduled as follows and may result in unreliable or unavailable GPS signal:
Location: Centered at 314817N 1091130W or the SSO VOR 162 degree radial at 28NM.
Dates and times:
14–18 FEB 17 0530Z–1030Z
21–23 FEB 17 0630Z–1030Z
Each event may last the entire requested period.
NOTAM INFO: NAV (EPG GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 496NM RADIUS CENTERED AT 314817N 1091130W (SSO 162028) FL400 - UNL DECREASING IN AREA WITH A DECREASE IN ALT
450NM RADIUS AT FL250
381NM RADIUS AT 10000FT
362NM RADIUS AT 4000FT AGL
343NM RADIUS AT 50FT AGL
Pilots are encouraged to report anomalies only when ATC assistance is required.
The time periods discussed in this advisory may be reduced or cancelled with little or no
notice. Pilots are advised to check NOTAMs frequently for possible changes prior to
operations in the area. NOTAMs will be published at least 24 hours in advance of any GPS