Abort takeoff account takeoff warning horn sounded at 95 KTS.

Attributes
ACN	127114
Time
Date	198910
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bwi
State Reference	MD
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 11000
ASRS Report	127114
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

At 95 KIAS takeoff warning horn sounded. Takeoff was aborted. We could not determine cause of horn. We returned to gate, wrote it up for maintenance. They inspected aircraft and could find no cause. On next takeoff, everything was normal. Trim was set at top of green arc but why did it not go off until 95 KIAS?

Original NASA ASRS Text

Title: ABORT TKOF ACCOUNT TKOF WARNING HORN SOUNDED AT 95 KTS.

Narrative: AT 95 KIAS TKOF WARNING HORN SOUNDED. TKOF WAS ABORTED. WE COULD NOT DETERMINE CAUSE OF HORN. WE RETURNED TO GATE, WROTE IT UP FOR MAINT. THEY INSPECTED ACFT AND COULD FIND NO CAUSE. ON NEXT TKOF, EVERYTHING WAS NORMAL. TRIM WAS SET AT TOP OF GREEN ARC BUT WHY DID IT NOT GO OFF UNTIL 95 KIAS?

Data retrieved from NASA's ASRS site as of August 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.