Abort takeoff when takeoff warning horn sounded.

Attributes
ACN	179971
Time
Date	199106
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ewr
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport
Navigation In Use	Other Other
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8000 flight time type : 275
ASRS Report	179971
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 10000 flight time type : 1500
ASRS Report	180148
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : rejected takeoff flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

We were cleared for takeoff and upon advancing throttles the confign warning horn sounded. Closed throttles and taxied clear of the runway. Recycled spdbrake, flaps and trim, all appeared normal. Cycled throttles and configns warning horn did not sound. We speculated that the somewhat aft trim setting may have caused the horn. Stabilizer trim was set somewhat aft and may have caused the horn to sound (it was within the green band but at the high end of the band). Aircraft speed was low, did not exceed 10-15 KTS. All systems checked normal. Reported reason to tower and proceeded with the flight.

Original NASA ASRS Text

Title: ABORT TKOF WHEN TKOF WARNING HORN SOUNDED.

Narrative: WE WERE CLRED FOR TKOF AND UPON ADVANCING THROTTLES THE CONFIGN WARNING HORN SOUNDED. CLOSED THROTTLES AND TAXIED CLR OF THE RWY. RECYCLED SPDBRAKE, FLAPS AND TRIM, ALL APPEARED NORMAL. CYCLED THROTTLES AND CONFIGNS WARNING HORN DID NOT SOUND. WE SPECULATED THAT THE SOMEWHAT AFT TRIM SETTING MAY HAVE CAUSED THE HORN. STABILIZER TRIM WAS SET SOMEWHAT AFT AND MAY HAVE CAUSED THE HORN TO SOUND (IT WAS WITHIN THE GREEN BAND BUT AT THE HIGH END OF THE BAND). ACFT SPD WAS LOW, DID NOT EXCEED 10-15 KTS. ALL SYSTEMS CHKED NORMAL. RPTED REASON TO TWR AND PROCEEDED WITH THE FLT.

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.