Narrative:

Airspeed on both sides gradually spread apart; until auto pilot kicked off. [Advised ATC] when I realized that airspeed was no longer usable while running a checklist. Side 2 worked so I switched to that. Landed without issue.

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Original NASA ASRS Text

Title: EA50 pilot experienced a gradual failure of the left seat airspeed indicator. It was determined that the right side airspeed indicator was accurate and was used to divert for a precautionary landing.

Narrative: Airspeed on both sides gradually spread apart; until auto pilot kicked off. [Advised ATC] when I realized that airspeed was no longer usable while running a checklist. Side 2 worked so I switched to that. Landed without issue.

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.