Narrative:

Approaching cruise altitude and breaking out of cloud tops, first officer noticed #1 engine start valve open light on, while turning off engine heat. Retarded #1 throttle to idle, start valve light flickered. Duct pressure normal at cruise power and idle. Pushed power back to cruise power and start valve light remained illuminated, flickering occasionally. Executed the 'start valve light illuminated' abnormal checklist, made a precautionary engine shutdown and returned to minneapolis for approach and landing. Repeated attempts to contact both commercial radio and local ground handlers while airborne, to advise of situation, were unsuccessful. Several mins after landing, we were finally able to notify msp ground handlers.

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Original NASA ASRS Text

Title: #1 ENG, START VALVE OPEN LIGHT ON IN CRUISE. ENG SHUTDOWN AS A PRECAUTIONARY ACTION, ACFT RETURNED TO DEP ARPT AND LANDED UNEVENTFULLY.

Narrative: APCHING CRUISE ALT AND BREAKING OUT OF CLOUD TOPS, FO NOTICED #1 ENG START VALVE OPEN LIGHT ON, WHILE TURNING OFF ENG HEAT. RETARDED #1 THROTTLE TO IDLE, START VALVE LIGHT FLICKERED. DUCT PRESSURE NORMAL AT CRUISE PWR AND IDLE. PUSHED PWR BACK TO CRUISE PWR AND START VALVE LIGHT REMAINED ILLUMINATED, FLICKERING OCCASIONALLY. EXECUTED THE 'START VALVE LIGHT ILLUMINATED' ABNORMAL CHKLIST, MADE A PRECAUTIONARY ENG SHUTDOWN AND RETURNED TO MINNEAPOLIS FOR APCH AND LNDG. REPEATED ATTEMPTS TO CONTACT BOTH COMMERCIAL RADIO AND LCL GND HANDLERS WHILE AIRBORNE, TO ADVISE OF SIT, WERE UNSUCCESSFUL. SEVERAL MINS AFTER LNDG, WE WERE FINALLY ABLE TO NOTIFY MSP GND HANDLERS.

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.