A CRJ200 CREW EXPERIENCED A 'FLAPS FAIL' CAUTION WHICH ANNUNCIATION ON FINAL APCH WHEN LNDG FLAPS WERE SELECTED.

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DURING THE LNDG APCH TO ZZZ1; A 'FLAPS FAIL' CAUTION MESSAGE APPEARED WHEN THE FLAP HANDLE WAS SELECTED FROM THE 30 DEG POS TO THE 40 DEG POS. A GAR WAS EXECUTED AND COORDINATED WITH ATC. THE CTLRS PROVIDED VECTORS TO FACILITATE OUR TROUBLESHOOTING AND CHKLIST EXECUTION. THEY DID AN EXCELLENT JOB OF RESPONDING TO OUR ABNORMAL SIT. THE FO DID AN EXCELLENT JOB OF FLYING THE ACFT WHILE I RAN THE CHKLISTS; COORDINATED WITH DISPATCH; MAINT CTL; EXCEPTIONS AND OF COURSE; THE FLT ATTENDANT. I BRIEFED THE PAX ABOUT THE NATURE OF OUR FLAP INDICATION AND ASSURED THEM THAT WE WOULD BE LNDG SAFELY AFTER A THOROUGH EVALUATION OF THE SIT. THE LNDG WAS MADE WITH 30 DEGS FLAPS; UNEVENTFULLY. BOTH THE FO AND THE FLT ATTENDANT PERFORMED IN AN EXEMPLARY FASHION UNDER THE CIRCUMSTANCES. A GOOD CRM ATMOSPHERE PREVAILED. MY FO AND I XCHKED AND SUPPORTED EACH OTHER WELL. WE DID PAUSE TO CONSIDER WHETHER TO RAISE THE LNDG GEAR ON CLBOUT. THE NORMAL GAR CONFIGN IS GEAR UP; FLAPS 8 DEGS. IN THIS SIT; OUR FLAPS WERE LOCKED AT 30 DEGS. I DO REMEMBER SEEING THIS FAULT IN THE SIMULATOR DURING TRAINING. THE QRH PROC WORKED WELL. WE DID CHOOSE TO RAISE THE LNDG GEAR; BY THE WAY.