MD80 crew had 2 takeoff aborts due to flap-slat warnings.

Attributes
ACN	481798
Time
Date	200008
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	481798
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure non adherence : company policies other anomaly other
Independent Detector	atc equipment other atc equipment : flap/ slat warning
Resolutory Action	flight crew : rejected takeoff
Consequence	other other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : testing performance deficiency : repair performance deficiency : non compliance with legal requirements performance deficiency : fault isolation
Supplementary
Problem Areas	Aircraft Company Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

Aborted takeoff. Before we left I noticed several write-ups on the slat disagreement light flickering on selection of landing flaps. All indications were normal prior to initiation of our takeoff roll. At 50 KTS the aural warning sounded 'slats' so I aborted the takeoff. After clearing the runway we recycled the flaps and slats to up then 8 degrees for takeoff. All indications normal. I attempted a second takeoff after checking the aural warning several times to ensure that the flaps and slats were indeed set for takeoff. At 110 KTS the aural warning sounded again, this time accompanied by a flickering slat disagreement light. I aborted the takeoff using manual brakes and spoilers since runway 17R is a long runway. We exited last high speed and returned to the ramp. I called for the fire trucks to monitor the main gear since the temperature was approaching 300 degrees. Our guys chocked the wheels and I released the brakes to cool the brakes. When the brake temperatures returned to normal we taxied to the gate and let the passenger off. The plane was taken OTS and the flight departed later with a different aircraft and cockpit crew since the copilot and I were out of duty day. In retrospect, I should not have attempted the second takeoff. It is up to maintenance to fix them and I should have handed it over to them after the first abort I was so sure the problem was a glitch in the indicating system for the slat aural warning and that it was fixed after recycling the flaps and slats that I gave it a second attempt. Won't do that again.

Original NASA ASRS Text

Title: MD80 CREW HAD 2 TKOF ABORTS DUE TO FLAP-SLAT WARNINGS.

Narrative: ABORTED TKOF. BEFORE WE LEFT I NOTICED SEVERAL WRITE-UPS ON THE SLAT DISAGREEMENT LIGHT FLICKERING ON SELECTION OF LNDG FLAPS. ALL INDICATIONS WERE NORMAL PRIOR TO INITIATION OF OUR TKOF ROLL. AT 50 KTS THE AURAL WARNING SOUNDED 'SLATS' SO I ABORTED THE TKOF. AFTER CLRING THE RWY WE RECYCLED THE FLAPS AND SLATS TO UP THEN 8 DEGS FOR TKOF. ALL INDICATIONS NORMAL. I ATTEMPTED A SECOND TKOF AFTER CHKING THE AURAL WARNING SEVERAL TIMES TO ENSURE THAT THE FLAPS AND SLATS WERE INDEED SET FOR TKOF. AT 110 KTS THE AURAL WARNING SOUNDED AGAIN, THIS TIME ACCOMPANIED BY A FLICKERING SLAT DISAGREEMENT LIGHT. I ABORTED THE TKOF USING MANUAL BRAKES AND SPOILERS SINCE RWY 17R IS A LONG RWY. WE EXITED LAST HIGH SPD AND RETURNED TO THE RAMP. I CALLED FOR THE FIRE TRUCKS TO MONITOR THE MAIN GEAR SINCE THE TEMP WAS APCHING 300 DEGS. OUR GUYS CHOCKED THE WHEELS AND I RELEASED THE BRAKES TO COOL THE BRAKES. WHEN THE BRAKE TEMPS RETURNED TO NORMAL WE TAXIED TO THE GATE AND LET THE PAX OFF. THE PLANE WAS TAKEN OTS AND THE FLT DEPARTED LATER WITH A DIFFERENT ACFT AND COCKPIT CREW SINCE THE COPLT AND I WERE OUT OF DUTY DAY. IN RETROSPECT, I SHOULD NOT HAVE ATTEMPTED THE SECOND TKOF. IT IS UP TO MAINT TO FIX THEM AND I SHOULD HAVE HANDED IT OVER TO THEM AFTER THE FIRST ABORT I WAS SO SURE THE PROB WAS A GLITCH IN THE INDICATING SYS FOR THE SLAT AURAL WARNING AND THAT IT WAS FIXED AFTER RECYCLING THE FLAPS AND SLATS THAT I GAVE IT A SECOND ATTEMPT. WON'T DO THAT AGAIN.

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.