Narrative:

I was flying in normal cruise on an IFR flight plan. When directly above ZZZ the turbo input temperature gauge redlined at 2000 degrees. Also the annunciator light lit. Rather than troubleshoot the problem in the air; I decided to divert and land at the airport directly under me at the time. I contacted ZZZ approach; who I was already in 2-WAY communication; and alerted them to the problem. They assisted with vectors to ZZZ and contacting the tower for me. After talking with several mechanics and cirrus professionals; it was determined to be a faulty sensor.

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Original NASA ASRS Text

Title: AN SR22 PILOT DIVERTED FOR A PRECAUTIONARY LANDING WHEN HIS TURBINE INLET TEMPERATURE GAUGE PEGGED AT 2000 DEG.

Narrative: I WAS FLYING IN NORMAL CRUISE ON AN IFR FLT PLAN. WHEN DIRECTLY ABOVE ZZZ THE TURBO INPUT TEMP GAUGE REDLINED AT 2000 DEGS. ALSO THE ANNUNCIATOR LIGHT LIT. RATHER THAN TROUBLESHOOT THE PROB IN THE AIR; I DECIDED TO DIVERT AND LAND AT THE ARPT DIRECTLY UNDER ME AT THE TIME. I CONTACTED ZZZ APCH; WHO I WAS ALREADY IN 2-WAY COM; AND ALERTED THEM TO THE PROB. THEY ASSISTED WITH VECTORS TO ZZZ AND CONTACTING THE TWR FOR ME. AFTER TALKING WITH SEVERAL MECHS AND CIRRUS PROFESSIONALS; IT WAS DETERMINED TO BE A FAULTY SENSOR.

Data retrieved from NASA's ASRS site as of May 2009 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.