UPDATE: FAA Schedules 5 Additional GPS Interference Testing Blocks

7-18-17 – The GPS Interference Testing may lead to unreliable or unavailable GPS signals in the designated area during the testing.

The FAA has posted five more flight advisories for July 2017 GPS Interference Testing in the following areas, between the following dates:

The testing will be happening during the time periods and around the areas specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Yuma, AZ Area – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 325413N1135609W or the BZA VOR 064 degree radial at 35NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Bremerton, WA Area – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 474356N1224354W or the SEA VOR 301 degree radial at 25NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Fort Polk, LA Area – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 310704N0930913W or the AEX VOR 255 degree radial at 35NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Alamogordo, NM Area #1 – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 321132N1060819W or the ELP VORTAC 010 degree radial at 24NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Alamogordo, NM Area #2 – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 331424N1062147W or the TCS VORTAC 085 degree radial at 46NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Final Details

For pilots who are planning to fly in the above areas during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. Click the following links to read the associated July 2017 GPS interference testing advisories with an area map graphic:


7-11-17 FAA Schedules Las Vegas, Idaho Falls GPS Interference Testing

The FAA has posted a pair of flight advisories for July 2017 GPS Interference Testing in the Las Vegas, NV area, and in the Idaho Falls, ID area. The Las Vegas testing is taking place during dates between July 10 – July 26, 2017, while the Idaho Falls testing is taking place during dates between July 13 – July 22, 2017. The testing will be happening during the time periods and around the areas specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Las Vegas, NV Area – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 361304N1150307W or the LAS VOR 021 degree radial at 10NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Idaho Falls, ID Area – July 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 433734N1125400W or the IDA VOR 268 degree radial at 37NM.

What times and dates will the testing take place?

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

Final Details

For pilots who are planning to fly in the above areas during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the July 2017 GPS interference testing advisory for Las Vegas, NV, with an area map graphic, click here; and for Idaho Falls, ID, click here.


Aircraft Emergency

A couple weeks ago a new client called me and told me of his recent scary experience. He had been flying his Cherokee 180 the previous day when the engine suddenly became very rough and lost significant power. He was at 13,500 MSL 50 miles west of Wendover, Nevada. A quick decision was made to turn toward the interstate and head back toward Wendover. At least over the freeway there would be places to land if he had to and help would be nearby. [Read More]