MD80 crew had the slat disagree light illuminate when flaps were extended.

Attributes
ACN	563246
Time
Date	200210
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ewr.airport
State Reference	NJ
Altitude	msl bound lower : 3000 msl bound upper : 5000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ewr.tower
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : straight in
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	563246
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
ASRS Report	563245
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : le slat disagree light other flight crewa other flight crewb
Resolutory Action	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:

During approach to runway 22L at ewr, slats were extended and slat disagree light illuminated. Checklist procedures were complied with and landing was uneventful. We requested the longer runway for landing and tower declared an emergency for us and deployed the fire equipment. Supplemental information from acn 563245: slat disagree light came on at slat extension, light flickered, then remain steady. Accomplished abnormal procedures. Tower asked the reason and then declared an emergency for us.

Original NASA ASRS Text

Title: MD80 CREW HAD THE SLAT DISAGREE LIGHT ILLUMINATE WHEN FLAPS WERE EXTENDED.

Narrative: DURING APCH TO RWY 22L AT EWR, SLATS WERE EXTENDED AND SLAT DISAGREE LIGHT ILLUMINATED. CHKLIST PROCS WERE COMPLIED WITH AND LNDG WAS UNEVENTFUL. WE REQUESTED THE LONGER RWY FOR LNDG AND TWR DECLARED AN EMER FOR US AND DEPLOYED THE FIRE EQUIP. SUPPLEMENTAL INFO FROM ACN 563245: SLAT DISAGREE LIGHT CAME ON AT SLAT EXTENSION, LIGHT FLICKERED, THEN REMAIN STEADY. ACCOMPLISHED ABNORMAL PROCS. TWR ASKED THE REASON AND THEN DECLARED AN EMER FOR US.

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.