MD80 crew had a leading edge slat indicate not fully extended.

Attributes
ACN	463748
Time
Date	200002
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sat.airport
State Reference	TX
Altitude	agl single value : 1000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sat.tower artcc : zma.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 30l other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	463748
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
ASRS Report	463749
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : executed go around
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Landing slat malfunction. Upon final flap 40 degree selection slat blue light went to yellow disagree instead of land. Upon retraction through 23 degrees blue takeoff light came on. Go around at flaps 15 degrees made to 4000 ft and operations manual procedure completed. Procedure called for approach speeds 35 KTS higher than a normal landing. For this reason I declared an emergency anticipating a hot brake landing. Upon flap 40 degree selection for landing runway 3 the green land light did illuminate. I did not reduce speed until landing assured. Maximum brakes used until 120 KTS on landing then released with 4000 ft runway remaining. Maximum brake temperature noted at 205 degrees. Handling of aircraft normal throughout approach and landing.

Original NASA ASRS Text

Title: MD80 CREW HAD A LEADING EDGE SLAT INDICATE NOT FULLY EXTENDED.

Narrative: LNDG SLAT MALFUNCTION. UPON FINAL FLAP 40 DEG SELECTION SLAT BLUE LIGHT WENT TO YELLOW DISAGREE INSTEAD OF LAND. UPON RETRACTION THROUGH 23 DEGS BLUE TKOF LIGHT CAME ON. GAR AT FLAPS 15 DEGS MADE TO 4000 FT AND OPS MANUAL PROC COMPLETED. PROC CALLED FOR APCH SPDS 35 KTS HIGHER THAN A NORMAL LNDG. FOR THIS REASON I DECLARED AN EMER ANTICIPATING A HOT BRAKE LNDG. UPON FLAP 40 DEG SELECTION FOR LNDG RWY 3 THE GREEN LAND LIGHT DID ILLUMINATE. I DID NOT REDUCE SPD UNTIL LNDG ASSURED. MAX BRAKES USED UNTIL 120 KTS ON LNDG THEN RELEASED WITH 4000 FT RWY REMAINING. MAX BRAKE TEMP NOTED AT 205 DEGS. HANDLING OF ACFT NORMAL THROUGHOUT APCH AND LNDG.

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.