Light transport PIC aborts takeoff when alerted by takeoff aural warning system.

Attributes
ACN	146791
Time
Date	199005
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : vad
State Reference	GA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop 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 : 220 flight time total : 11000 flight time type : 2000
ASRS Report	146791
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other other

Narrative:

During takeoff roll departing vad, we heard a takeoff flaps aural warning at approximately 70-80 KTS. Since this indicates that the flaps are improperly positioned for takeoff, and since I do not feel that accelerating down the runway toward vr is the proper place to be diverting one's attention to analyze problems of this nature, I elected to abort the takeoff. Upon stopping the aircraft, we noted that the flaps were properly positioned for takeoff and concluded that we received a false indication from the aural warning unit! I then held the brakes and advanced power toward the takeoff position to attempt to duplicate the problem. Since I could not duplicate the warning, I elected to continue the flight to atl. We continued toward altitude west/O incident. I feel it is noteworthy to report the above incident since the aircraft in question (an light transport) is equipped with an advanced cockpit (CRT's and aural warning units), and in my 2 yrs experience as captain on the aircraft type, I have noted such false warnings (which usually cannot be duplicated) are a fairly common occurrence.

Original NASA ASRS Text

Title: LTT PIC ABORTS TKOF WHEN ALERTED BY TKOF AURAL WARNING SYSTEM.

Narrative: DURING TKOF ROLL DEPARTING VAD, WE HEARD A TKOF FLAPS AURAL WARNING AT APPROX 70-80 KTS. SINCE THIS INDICATES THAT THE FLAPS ARE IMPROPERLY POSITIONED FOR TKOF, AND SINCE I DO NOT FEEL THAT ACCELERATING DOWN THE RWY TOWARD VR IS THE PROPER PLACE TO BE DIVERTING ONE'S ATTN TO ANALYZE PROBS OF THIS NATURE, I ELECTED TO ABORT THE TKOF. UPON STOPPING THE ACFT, WE NOTED THAT THE FLAPS WERE PROPERLY POSITIONED FOR TKOF AND CONCLUDED THAT WE RECEIVED A FALSE INDICATION FROM THE AURAL WARNING UNIT! I THEN HELD THE BRAKES AND ADVANCED PWR TOWARD THE TKOF POS TO ATTEMPT TO DUPLICATE THE PROB. SINCE I COULD NOT DUPLICATE THE WARNING, I ELECTED TO CONTINUE THE FLT TO ATL. WE CONTINUED TOWARD ALT W/O INCIDENT. I FEEL IT IS NOTEWORTHY TO RPT THE ABOVE INCIDENT SINCE THE ACFT IN QUESTION (AN LTT) IS EQUIPPED WITH AN ADVANCED COCKPIT (CRT'S AND AURAL WARNING UNITS), AND IN MY 2 YRS EXPERIENCE AS CAPT ON THE ACFT TYPE, I HAVE NOTED SUCH FALSE WARNINGS (WHICH USUALLY CANNOT BE DUPLICATED) ARE A FAIRLY COMMON OCCURRENCE.

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.