Narrative:

During climb out on runway 27 in cvg and immediately during retraction of flaps and climb check, we received a 'gear disagreement' warning message and aural message. We notified ATC, asked for holding vectors and began completion of the QRH. We talked to maintenance after completing the QRH for any additional information they might have. We were receiving a red hash mark signal for the left main gear. The nose and right main gear were indicating white up indications. After manual extension of the gear, we determined it was best to declare an emergency and return to cvg. We did receive a '3-green' down and locked indication after manual extension. We asked ATC for permission to perform a fly-by to runway 18R in cvg. During vectors for the fly-by we obtained a hydraulic system #3 high temperature caution message. We again notified maintenance who advised us to remain status quo and land quickly. We landed uneventfully, crash fire rescue equipment was standing by. Passenger were deplaned at the gate. Maintenance met the aircraft and no further incident occurred.

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Original NASA ASRS Text

Title: CL65 CREW RETURN TO LAND AFTER HAVING THE L GEAR FAIL TO RETRACT FOLLOWED BY A #3 HYD SYS HIGH TEMP WARNING. LOW ALT FLY-BY BY THE TWR WITH CFR WAITING FOR EMER LNDG AT CVG, KY.

Narrative: DURING CLBOUT ON RWY 27 IN CVG AND IMMEDIATELY DURING RETRACTION OF FLAPS AND CLB CHK, WE RECEIVED A 'GEAR DISAGREEMENT' WARNING MESSAGE AND AURAL MESSAGE. WE NOTIFIED ATC, ASKED FOR HOLDING VECTORS AND BEGAN COMPLETION OF THE QRH. WE TALKED TO MAINT AFTER COMPLETING THE QRH FOR ANY ADDITIONAL INFO THEY MIGHT HAVE. WE WERE RECEIVING A RED HASH MARK SIGNAL FOR THE L MAIN GEAR. THE NOSE AND R MAIN GEAR WERE INDICATING WHITE UP INDICATIONS. AFTER MANUAL EXTENSION OF THE GEAR, WE DETERMINED IT WAS BEST TO DECLARE AN EMER AND RETURN TO CVG. WE DID RECEIVE A '3-GREEN' DOWN AND LOCKED INDICATION AFTER MANUAL EXTENSION. WE ASKED ATC FOR PERMISSION TO PERFORM A FLY-BY TO RWY 18R IN CVG. DURING VECTORS FOR THE FLY-BY WE OBTAINED A HYD SYS #3 HIGH TEMP CAUTION MESSAGE. WE AGAIN NOTIFIED MAINT WHO ADVISED US TO REMAIN STATUS QUO AND LAND QUICKLY. WE LANDED UNEVENTFULLY, CFR WAS STANDING BY. PAX WERE DEPLANED AT THE GATE. MAINT MET THE ACFT AND NO FURTHER INCIDENT OCCURRED.

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.