Narrative:

I was cruising at 9500 ft MSL, receiving flight following service from ZOA. There was a forest fire approximately 13 NM southwest of swr and the smoke was blowing to the northwest direction. I was tracking V-496 to swr, but diverted to the south of the fire to circumnav the restr airspace, which existed by NOTAM. The radius of the restr airspace was 5.5 NM. The controller told me that I was in the restr airspace, and I said that I would divert further to the southeast direction. When flying VFR, it is not easy to estimate distance from a point that is not a NAVAID. In retrospect, all I had to do was to program the point from the NOTAM into the GPS and fly an arc. Perhaps even more easily, ask for radar vectors around that area. I wonder, though, why did the controller not suggest radar vectors if he saw that I was about to enter such area.

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Original NASA ASRS Text

Title: AN UNINTENTIONAL ENTRY INTO A TFR SET UP BY NOTAM AROUND A FOREST FIRE. ONCE REMINDED, THE RPTR LISTS SEVERAL WAYS HE COULD HAVE AVOIDED THIS INCIDENT.

Narrative: I WAS CRUISING AT 9500 FT MSL, RECEIVING FLT FOLLOWING SVC FROM ZOA. THERE WAS A FOREST FIRE APPROX 13 NM SW OF SWR AND THE SMOKE WAS BLOWING TO THE NW DIRECTION. I WAS TRACKING V-496 TO SWR, BUT DIVERTED TO THE S OF THE FIRE TO CIRCUMNAV THE RESTR AIRSPACE, WHICH EXISTED BY NOTAM. THE RADIUS OF THE RESTR AIRSPACE WAS 5.5 NM. THE CTLR TOLD ME THAT I WAS IN THE RESTR AIRSPACE, AND I SAID THAT I WOULD DIVERT FURTHER TO THE SE DIRECTION. WHEN FLYING VFR, IT IS NOT EASY TO ESTIMATE DISTANCE FROM A POINT THAT IS NOT A NAVAID. IN RETROSPECT, ALL I HAD TO DO WAS TO PROGRAM THE POINT FROM THE NOTAM INTO THE GPS AND FLY AN ARC. PERHAPS EVEN MORE EASILY, ASK FOR RADAR VECTORS AROUND THAT AREA. I WONDER, THOUGH, WHY DID THE CTLR NOT SUGGEST RADAR VECTORS IF HE SAW THAT I WAS ABOUT TO ENTER SUCH AREA.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.