FAA extends GPS route T-373 to King Salmon starting Oct. 29

Instrument traffic flying into and out of King Salmon Airport will gain a connected en route path starting at 0901 UTC on Oct. 29, when a Federal Aviation Administration amendment extends GPS route T-373 to the King Salmon VORTAC. The route previously ran between the Kowok fix and the Werel waypoint. The VORTAC, a ground station that broadcasts bearing and distance information to aircraft, will let planes flying to and from the airport receive terminal services the route did not previously provide.

"The FAA is taking this action to increase the route structure connectivity in Alaska," the agency said in the rule. The January proposal provided more detail about the connectivity gap: T-373 as built did not provide terminal connectivity, and extending it to King Salmon Airport would let aircraft en route to and from the field receive terminal services. The proposal also described the extension as an alternative route option after the revocation of Colored Federal Airway B-27.

The FAA received no public comments during the rulemaking, which opened Jan. 28 under docket FAA-2026-0859 and closed to comment in mid-March.

The change is part of a wider rebuild of Alaska's airway map. Alaska News previously covered the FAA's revocation of routes J-804R and J-889R, the extension of Q-10 to the EURKA waypoint, and a parallel amendment to route T-388 near Kodiak, all effective the same October date, as the agency moves off ground-based navigation aids toward satellite routing.

The amendment is folded into FAA Order JO 7400.11, which is revised annually.