CRJ700 crew had the leading slats fail to extend.

Attributes
ACN	634100
Time
Date	200410
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : slc.airport
State Reference	US
Altitude	msl single value : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : s56.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 700 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 190
ASRS Report	634100
Person 2
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : eicas slats fail caution message other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist flight crew : declared emergency flight crew : landed in emergency condition
Consequence	other other
Supplementary
Problem Areas	Aircraft FAA
Primary Problem	Aircraft

Narrative:

On downwind leg upon first selection of slat/flap lever, slats fail caution message appeared and slats did not deploy. Ran QRH, flaps fail and/or slats fail abnormal procedure and declared emergency to ATC, and requested extended downwind to accomplish QRH procedure. Was able to achieve flap deployment to 45 degrees, slats zero. Computed increased landing distance. Made call to flight attendant and a brief PA to passenger. Landed uneventfully with slats zero, flaps 45 degrees, crash fire rescue equipment vehicles standing by as a precaution. Taxied to the gate without further incident. No passenger problems or concerns noted during deplaning. Contacted system operations controller, maintenance operations controller, and chief pilot and made entries in aircraft maintenance logbook. Also reported/logged the right engine hydraulic 'sov' circuit breaker popped, not resettable by mechanic, discovered on postflt. Unfortunately these slat/flap problems continue to occur, but previous simulator training for this very type of malfunction definitely helped in carrying out the QRH abnormal procedure.

Original NASA ASRS Text

Title: CRJ700 CREW HAD THE LEADING SLATS FAIL TO EXTEND.

Narrative: ON DOWNWIND LEG UPON FIRST SELECTION OF SLAT/FLAP LEVER, SLATS FAIL CAUTION MESSAGE APPEARED AND SLATS DID NOT DEPLOY. RAN QRH, FLAPS FAIL AND/OR SLATS FAIL ABNORMAL PROC AND DECLARED EMER TO ATC, AND REQUESTED EXTENDED DOWNWIND TO ACCOMPLISH QRH PROC. WAS ABLE TO ACHIEVE FLAP DEPLOYMENT TO 45 DEGS, SLATS ZERO. COMPUTED INCREASED LNDG DISTANCE. MADE CALL TO FLT ATTENDANT AND A BRIEF PA TO PAX. LANDED UNEVENTFULLY WITH SLATS ZERO, FLAPS 45 DEGS, CFR VEHICLES STANDING BY AS A PRECAUTION. TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. NO PAX PROBS OR CONCERNS NOTED DURING DEPLANING. CONTACTED SYS OPS CTLR, MAINT OPS CTLR, AND CHIEF PLT AND MADE ENTRIES IN ACFT MAINT LOGBOOK. ALSO RPTED/LOGGED THE R ENG HYD 'SOV' CIRCUIT BREAKER POPPED, NOT RESETTABLE BY MECH, DISCOVERED ON POSTFLT. UNFORTUNATELY THESE SLAT/FLAP PROBS CONTINUE TO OCCUR, BUT PREVIOUS SIMULATOR TRAINING FOR THIS VERY TYPE OF MALFUNCTION DEFINITELY HELPED IN CARRYING OUT THE QRH ABNORMAL PROC.

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.