Narrative:

In climb; about FL190 left start valve open annunciation displayed. Ran QRH procedure. Leveled at FL210. Declared an emergency and returned to departure airport.

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Original NASA ASRS Text

Title: MD80 flight crew experienced a start valve open light at FL190 in climb. An emergency was declared; the QRH complied with and the flight returned to their departure airport.

Narrative: In climb; about FL190 left start valve open annunciation displayed. Ran QRH procedure. Leveled at FL210. Declared an emergency and returned to departure airport.

Data retrieved from NASA's ASRS site as of April 2012 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.