Narrative:

I showed aircraft X's route to be onm direct tcs direct fhu. After onm aircraft X appeared to proceed direct fhu and not tcs. Weather was impacting the sector and I was dealing with something in the northern half of my sector before I realized aircraft X was flashing MSAW (minimum safe altitude warning) with the mountains. Aircraft X was at his cruising altitude of 12;000 feet and the mia (minimum IFR altitude) around the magdalena mountains is 12;800 feet. I immediately gave a vector away from the mountains. I questioned the pilot and he said he was showing the same route and didn't know why his plane turned off route. Once clear of the 12;800 foot mia I cleared aircraft X direct on course. I am not sure if the aircraft broke the mia or not.

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Original NASA ASRS Text

Title: ZAB Center Controller observed an aircraft flying off its assigned route and below the Minimum IFR Altitude.

Narrative: I showed Aircraft X's route to be ONM direct TCS direct FHU. After ONM Aircraft X appeared to proceed direct FHU and not TCS. Weather was impacting the sector and I was dealing with something in the northern half of my sector before I realized Aircraft X was flashing MSAW (Minimum Safe Altitude Warning) with the Mountains. Aircraft X was at his cruising altitude of 12;000 feet and the MIA (Minimum IFR Altitude) around the Magdalena Mountains is 12;800 feet. I immediately gave a vector away from the mountains. I questioned the pilot and he said he was showing the same route and didn't know why his plane turned off route. Once clear of the 12;800 foot MIA I cleared Aircraft X direct on course. I am not sure if the aircraft broke the MIA or not.

Data retrieved from NASA's ASRS site 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.