Narrative:

We left ZZZ to ZZZ1 airport to ZZZ2 airport. A briefing by ZZZ3 FSS indicated that there were two tfr's nearby. During the briefing, it appeared that we would pass well away from both power plant 1 and power plant 2 facilities. The majority of the flight took place in class G airspace, but when we checked in with ZZZ approach control we were told that we had entered the tfr airspace. One controller said within 7 NM, another said within 6 NM and another said 8 NM. When we contacted approach we were already exiting the airspace so we continued. On the return trip we received radar vectors to stay clear. The power plant 2 is not marked on the sectional so we were unable to determine its exact localizer. That altitude that we fly at will not allow radio communication until close to a facility. ATC facilities cannot pick up a transponder at low altitude until nearby. If we fly at an altitude which allows flight following, we cannot observe the defects for which we are looking for. The inaccuracies of the briefing led me to believe that I would be well clear. The lack of localizer on the sectional caused me to improperly calculate my position. The lack of radio communication prevented ATC from warning me.

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Original NASA ASRS Text

Title: SMA PLT INADVERTENTLY FLEW INTO A TEMPORARY RESTR AIRSPACE DURING A PIPE LINE PATROL. FSS BRIEFED THAT THERE WERE TWO POWER PLANTS NEAR RPTR'S INTENDED RTE OF FLT, BUT THAT COURSE WOULD AVOID THEM. HOWEVER, IT DID NOT. SINCE HE WAS TOO LOW TO MONITOR ATC, CTR COULD NOT WARN HIM.

Narrative: WE LEFT ZZZ TO ZZZ1 ARPT TO ZZZ2 ARPT. A BRIEFING BY ZZZ3 FSS INDICATED THAT THERE WERE TWO TFR'S NEARBY. DURING THE BRIEFING, IT APPEARED THAT WE WOULD PASS WELL AWAY FROM BOTH POWER PLANT 1 AND POWER PLANT 2 FACILITIES. THE MAJORITY OF THE FLT TOOK PLACE IN CLASS G AIRSPACE, BUT WHEN WE CHKED IN WITH ZZZ APCH CTL WE WERE TOLD THAT WE HAD ENTERED THE TFR AIRSPACE. ONE CTLR SAID WITHIN 7 NM, ANOTHER SAID WITHIN 6 NM AND ANOTHER SAID 8 NM. WHEN WE CONTACTED APCH WE WERE ALREADY EXITING THE AIRSPACE SO WE CONTINUED. ON THE RETURN TRIP WE RECEIVED RADAR VECTORS TO STAY CLR. THE POWER PLANT 2 IS NOT MARKED ON THE SECTIONAL SO WE WERE UNABLE TO DETERMINE ITS EXACT LOC. THAT ALT THAT WE FLY AT WILL NOT ALLOW RADIO COM UNTIL CLOSE TO A FAC. ATC FACILITIES CANNOT PICK UP A XPONDER AT LOW ALT UNTIL NEARBY. IF WE FLY AT AN ALT WHICH ALLOWS FLT FOLLOWING, WE CANNOT OBSERVE THE DEFECTS FOR WHICH WE ARE LOOKING FOR. THE INACCURACIES OF THE BRIEFING LED ME TO BELIEVE THAT I WOULD BE WELL CLR. THE LACK OF LOC ON THE SECTIONAL CAUSED ME TO IMPROPERLY CALCULATE MY POS. THE LACK OF RADIO COM PREVENTED ATC FROM WARNING ME.

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.