FSTW-490

Released

8 September 2017

FEDERAL AVIATION ADMINISTRATION

FLIGHT ADVISORY

GPS INTERFERENCE TESTING

FFC GPS 17-07 (FLEET FORCE COMMAND)

11 September – 14 October 2017

Bremerton, WA

GPS testing is scheduled as follows and may result in unreliable or unavailable GPS signal. A. Location: Centered at 474356N1224354W or the SEA VOR 301 degree radial at 25NM. B. Dates and times:

11 SEP 17 1300Z-1559Z 1900Z-2259Z

12-15 SEP 17 0100Z-0229Z 0500Z-0659Z 1300Z-1559Z 1900Z-2259Z

16 SEP 17 0100Z-0229Z 0500Z-0659Z

18 SEP 17 1300Z-1559Z 1900Z-2259Z

19-21 SEP 17 0100Z-0229Z 0500Z-0659Z 1300Z-1559Z 1900Z-2259Z

22 SEP 17 0100Z-0229Z 0500Z-0659Z 1300Z-1559Z 1900Z-2229Z

23 SEP 17 0100Z-0229Z 0500Z-0659Z

25 SEP 17 1300Z-1559Z 1900Z-2229Z

26-29 SEP 17 0100Z-0229Z 0500Z-0659Z 1300Z-1559Z 1900Z-2229Z

30 SEP 17 0100Z-0229Z 0500Z-0659Z

02 OCT 17 1300Z-1559Z 1900Z-2229Z

03-06 OCT 17 0100Z-0229Z 0500Z-0659Z 1300Z-1559Z 1900Z-2229Z

07 OCT 17 0100Z-0229Z 0500Z-0659Z

09 OCT 17 1300Z-1559Z 1900Z-2229Z

10-13 OCT 17 0100Z-0229Z 0500Z-0659Z 1300Z-1559Z 1900Z-2229Z

14 OCT 17 0100Z-0229Z 0500Z-0659Z

C. Duration: Each event may last the entire requested period.

D. NOTAM INFO: NAV (FFC GPS 17-07) GPS (INCLUDING WAAS, GBAS, AND ADS-

B) MAY NOT BE AVBL WI A 240NM RADIUS CENTERED AT 474356N1224354W

(SEA 301025) FL400-UNL,

192NM RADIUS AT FL250

121NM RADIUS AT 10000FT

113NM RADIUS AT 4000FT AGL

95NM RADIUS AT 50FT AGL E. Pilots are encouraged to report anomalies only when ATC assistance is required.

Released

8 September 2017

The NOTAMs discussed in this advisory may change 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 tests.