June 10, 2011
AOPA ePublishing staff
The FAA has issued a flight advisory for potentially unreliable GPS signals in the vicinity of Anchorage, Alaska, on June 13, June 15, and June 16.
During testing, the GPS signal may be unreliable or unavailable within an area from the surface to Flight Level 400 starting at 611441N/1494902W, or the ANC VOR 63-degree radial at 13 nautical miles, clockwise to 612024N/1480628W, 611424N/1480357W, 610332N/1494911W.
Pilots are encouraged to report anomalies to the appropriate air route traffic control center to help determine the extent of signal degradation. Please share your reports with AOPA.
Notams will be published at least 24 hours in advance of tests, but may change with little or no notice. Pilots are encouraged to check notams frequently for changes to operations in the area. Tests will be during any period within the stated times, the FAA said.
Testing will take place from 1430Z to 1730Z on June 13, June 15, and June 16.
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