PC12 flight crew has DA50 enter runway while on takeoff roll.

Attributes
ACN	699358
Time
Date	200606
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : teb.airport
State Reference	NJ
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	PC-12
Operating Under FAR Part	Part 91
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : teb.tower
Operator	general aviation : corporate
Make Model Name	Falcon 50
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 92 flight time total : 5700 flight time type : 1200
ASRS Report	699358
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : rejected takeoff
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Airport
Primary Problem	Ambiguous

Narrative:

Cleared into 'position and hold runway 24' at teb. Subsequently cleared for takeoff. Crew had observed multiple aircraft holding short of various txwys and runways downline. During the takeoff run; the PIC observed a falcon 50 enter the active runway left to right. PIC commanded an abort as the tower called for a discontinued takeoff. Probable cause was a conflict in coordination between tower and ground control.

Original NASA ASRS Text

Title: PC12 FLT CREW HAS DA50 ENTER RWY WHILE ON TKOF ROLL.

Narrative: CLRED INTO 'POS AND HOLD RWY 24' AT TEB. SUBSEQUENTLY CLRED FOR TKOF. CREW HAD OBSERVED MULTIPLE ACFT HOLDING SHORT OF VARIOUS TXWYS AND RWYS DOWNLINE. DURING THE TKOF RUN; THE PIC OBSERVED A FALCON 50 ENTER THE ACTIVE RWY L TO R. PIC COMMANDED AN ABORT AS THE TWR CALLED FOR A DISCONTINUED TKOF. PROBABLE CAUSE WAS A CONFLICT IN COORD BTWN TWR AND GND CTL.

Data retrieved from NASA's ASRS site as of January 2009 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.