In January the Federal Aviation Administration (FAA) advised Pierce County that Thun Field’s magnetic variation
(MAG VAR) is out of tolerance. Thun Field is currently 19 E, which is the 1995 value and the 2020 value is 15 E.
This current pavement and marking project at Thun Field allows for a great opportunity to renumber the runway to 35/17 to align with the new MAG VAR of 15 E.
Once the project is complete, including the runway numbers, a local NOTAM will be issued. The new runway
numbers of 35/17 will be reflected in the October 15, 2015 FAA publication cycle.
The airport’s runway will be closed for several consecutive days the week of Sept. 14 for the pavement work.