Crj-200 flight crew has a flap failure during approach to bos.

Attributes
ACN	726215
Time
Date	200702
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : a90.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 150 flight time total : 6300 flight time type : 5000
ASRS Report	726215
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : landed as precaution
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On approach to runway 27 in bos we were cleared to join the localizer for runway 27. Approximately 20 mi out we were cleared to slow to 190 KTS. At 215 KTS I called for flaps 8 degrees. After the first officer selected the flap lever to 8 we received the flaps fail caution message. Looking at the flap indicator they had failed at zero. We ran the QRH procedures and requested vectors for runway 22L which gave us an additional 3000 ft of landing runway. Since we were so close to the approach I opted not to call maintenance and focus on getting the aircraft prepared for landing on the new runway. We were cleared for the visual to runway 22L and we landed without incident. At the time I chose not to declare an emergency. I determined that it was an abnormal situation not necessarily an emergency situation. However; if we had encountered complications after landing we would possibly have required assistance so in retrospect; I should have declared an emergency.

Original NASA ASRS Text

Title: CRJ-200 FLT CREW HAS A FLAP FAILURE DURING APCH TO BOS.

Narrative: ON APCH TO RWY 27 IN BOS WE WERE CLRED TO JOIN THE LOC FOR RWY 27. APPROX 20 MI OUT WE WERE CLRED TO SLOW TO 190 KTS. AT 215 KTS I CALLED FOR FLAPS 8 DEGS. AFTER THE FO SELECTED THE FLAP LEVER TO 8 WE RECEIVED THE FLAPS FAIL CAUTION MESSAGE. LOOKING AT THE FLAP INDICATOR THEY HAD FAILED AT ZERO. WE RAN THE QRH PROCS AND REQUESTED VECTORS FOR RWY 22L WHICH GAVE US AN ADDITIONAL 3000 FT OF LNDG RWY. SINCE WE WERE SO CLOSE TO THE APCH I OPTED NOT TO CALL MAINT AND FOCUS ON GETTING THE ACFT PREPARED FOR LNDG ON THE NEW RWY. WE WERE CLRED FOR THE VISUAL TO RWY 22L AND WE LANDED WITHOUT INCIDENT. AT THE TIME I CHOSE NOT TO DECLARE AN EMER. I DETERMINED THAT IT WAS AN ABNORMAL SITUATION NOT NECESSARILY AN EMER SITUATION. HOWEVER; IF WE HAD ENCOUNTERED COMPLICATIONS AFTER LNDG WE WOULD POSSIBLY HAVE REQUIRED ASSISTANCE SO IN RETROSPECT; I SHOULD HAVE DECLARED AN EMER.

Data retrieved from NASA's ASRS site as of January 2009 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.