DC9-30 crew had a leading edge slat disagree light illuminate with a resulting aircraft roll at fsd.

Attributes
ACN	541859
Time
Date	200203
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : fsd.vortac
State Reference	SD
Altitude	msl single value : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : fsd.tracon tower : fsd.tower
Operator	common carrier : air carrier
Make Model Name	DC-9 30
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	cruise : holding cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : cfi pilot : atp pilot : multi engine
Experience	flight time last 90 days : 180 flight time total : 16500 flight time type : 6000
ASRS Report	541859
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : slat disagree light illum inated. other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : declared emergency flight crew : landed in emergency condition other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Upon slat extension aircraft rolled to the right and the blue slat extend light did not come on and had amber slat disagree annunciator light. Airspeed 210 KIAS/landing weight approximately 97500 pounds. Cycle the slats one more time and had same results. We did our communication procedure and landed flap 50 degrees and without slats. We entered the holding pattern at the fsd VOR to work through the problem. Talked with our dispatch and maintenance. We all agreed to land at sioux falls. We landed flaps 50 degrees, used runway 21 the longest runway (8999 ft) long. Briefed the flight attendants and passenger of the slat problem. Had the fire/rescue equipment standing by. Landed uneventfully.

Original NASA ASRS Text

Title: DC9-30 CREW HAD A LEADING EDGE SLAT DISAGREE LIGHT ILLUMINATE WITH A RESULTING ACFT ROLL AT FSD.

Narrative: UPON SLAT EXTENSION ACFT ROLLED TO THE R AND THE BLUE SLAT EXTEND LIGHT DID NOT COME ON AND HAD AMBER SLAT DISAGREE ANNUNCIATOR LIGHT. AIRSPD 210 KIAS/LNDG WT APPROX 97500 LBS. CYCLE THE SLATS ONE MORE TIME AND HAD SAME RESULTS. WE DID OUR COM PROC AND LANDED FLAP 50 DEGS AND WITHOUT SLATS. WE ENTERED THE HOLDING PATTERN AT THE FSD VOR TO WORK THROUGH THE PROB. TALKED WITH OUR DISPATCH AND MAINT. WE ALL AGREED TO LAND AT SIOUX FALLS. WE LANDED FLAPS 50 DEGS, USED RWY 21 THE LONGEST RWY (8999 FT) LONG. BRIEFED THE FLT ATTENDANTS AND PAX OF THE SLAT PROB. HAD THE FIRE/RESCUE EQUIP STANDING BY. LANDED UNEVENTFULLY.

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.