GA instructor pilot says he might have missed ATCT local controller instruction to abort takeoff.

Attributes
ACN	90714
Time
Date	198807
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : hpn
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : swf
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : takeoff
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 30 flight time total : 700 flight time type : 10
ASRS Report	90714
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Instructional flight. We were cleared for takeoff (runway 16, tango intersection). The tower asked us for an immediate takeoff. My student checked strobes, altimeter setting, transponder settings and then proceeded with the takeoff. Tower might not have thought that we accelerated fast enough, as I think I heard a transmission to abort our takeoff. I am not at all sure of this, however, as the engine noise drowned out all speaker sounds. We took off west/O incident. This incident might never have taken place.

Original NASA ASRS Text

Title: GA INSTRUCTOR PLT SAYS HE MIGHT HAVE MISSED ATCT LCL CTLR INSTRUCTION TO ABORT TKOF.

Narrative: INSTRUCTIONAL FLT. WE WERE CLRED FOR TKOF (RWY 16, TANGO INTXN). THE TWR ASKED US FOR AN IMMEDIATE TKOF. MY STUDENT CHKED STROBES, ALTIMETER SETTING, TRANSPONDER SETTINGS AND THEN PROCEEDED WITH THE TKOF. TWR MIGHT NOT HAVE THOUGHT THAT WE ACCELERATED FAST ENOUGH, AS I THINK I HEARD A XMISSION TO ABORT OUR TKOF. I AM NOT AT ALL SURE OF THIS, HOWEVER, AS THE ENG NOISE DROWNED OUT ALL SPEAKER SOUNDS. WE TOOK OFF W/O INCIDENT. THIS INCIDENT MIGHT NEVER HAVE TAKEN PLACE.

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.