Notices

FLIGHT ADVISORY

GPS INTERFERENCE TESTING

CAMP GRAYLING MICHIGAN (CPGRMI) 25-23

02 – 13 August

Camp Grayling, MI

Centered at 444338N0844408W or the GLR 190017

The entire flight advisory may be accessed and downloaded at the following address:

https://www.faasafety.gov/files/notices/2025/Jul/CPGRMI_25-23_GPS_Flight_Advisory.pdf

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.