Narrative:

Received flaps fail caution message on climb out from clt. Synoptic page showed flaps failed at 0 degrees. Performed the appropriate abnormal procedures checklist for flaps fail caution and performed 0 degree flaps landing in cincinnati. The flight was uneventful, however, an emergency was declared for the landing in cincinnati due to the higher than normal approach speed. Callback conversation with reporter revealed the following information: the reporter stated this flap fail light and flap shutoff event has happened at least 3-4 times since flying this type aircraft. The reporter said the aircraft has an airworthiness directive on the flaps that requires the crew to extend the flaps to 15 units prior to flight. The reporter said the flaps, or a flap segment, bows under an air load and causes the flap indication to see an asymmetric condition and shut off the flaps.

Google
 

Original NASA ASRS Text

Title: A CANADAIR RJ CLBING THROUGH FL200 DECLARED AN EMER DUE TO A FLAP FAIL LIGHT INDICATION RESULTING IN A FLAPS UP LNDG.

Narrative: RECEIVED FLAPS FAIL CAUTION MESSAGE ON CLBOUT FROM CLT. SYNOPTIC PAGE SHOWED FLAPS FAILED AT 0 DEGS. PERFORMED THE APPROPRIATE ABNORMAL PROCS CHKLIST FOR FLAPS FAIL CAUTION AND PERFORMED 0 DEG FLAPS LNDG IN CINCINNATI. THE FLT WAS UNEVENTFUL, HOWEVER, AN EMER WAS DECLARED FOR THE LNDG IN CINCINNATI DUE TO THE HIGHER THAN NORMAL APCH SPD. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THIS FLAP FAIL LIGHT AND FLAP SHUTOFF EVENT HAS HAPPENED AT LEAST 3-4 TIMES SINCE FLYING THIS TYPE ACFT. THE RPTR SAID THE ACFT HAS AN AIRWORTHINESS DIRECTIVE ON THE FLAPS THAT REQUIRES THE CREW TO EXTEND THE FLAPS TO 15 UNITS PRIOR TO FLT. THE RPTR SAID THE FLAPS, OR A FLAP SEGMENT, BOWS UNDER AN AIR LOAD AND CAUSES THE FLAP INDICATION TO SEE AN ASYMMETRIC CONDITION AND SHUT OFF THE FLAPS.

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.