A320 departure from fll hesitates takeoff observing aircraft crossing runway downfield.

Attributes
ACN	611178
Time
Date	200403
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : fll.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : position and hold ground : takeoff roll
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : fll.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	ground : taxi
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 3700
ASRS Report	611178
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : ground less severe non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance controller : issued advisory
Miss Distance	horizontal : 4000 vertical : 0
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

From position and hold with parking brake set on runway 27R, cleared for takeoff by tower. As I was reading back the takeoff clearance, a light twin aircraft taxied across runway 27R on taxiway Q from north to south. (4000 ft from takeoff end) the first officer had just released the parking brake and the aircraft was moving. The controller noticed the conflicting traffic at the same time I did and partially stepped on my readback transmission. By this time the twin was well clear of the runway and the tower responded with clearance to continue the takeoff roll which the first officer did with my concurrence. Takeoff was normal with no threat of collision.

Original NASA ASRS Text

Title: A320 DEP FROM FLL HESITATES TKOF OBSERVING ACFT XING RWY DOWNFIELD.

Narrative: FROM POS AND HOLD WITH PARKING BRAKE SET ON RWY 27R, CLRED FOR TKOF BY TWR. AS I WAS READING BACK THE TKOF CLRNC, A LIGHT TWIN ACFT TAXIED ACROSS RWY 27R ON TXWY Q FROM N TO S. (4000 FT FROM TKOF END) THE FO HAD JUST RELEASED THE PARKING BRAKE AND THE ACFT WAS MOVING. THE CTLR NOTICED THE CONFLICTING TFC AT THE SAME TIME I DID AND PARTIALLY STEPPED ON MY READBACK XMISSION. BY THIS TIME THE TWIN WAS WELL CLR OF THE RWY AND THE TWR RESPONDED WITH CLRNC TO CONTINUE THE TKOF ROLL WHICH THE FO DID WITH MY CONCURRENCE. TKOF WAS NORMAL WITH NO THREAT OF COLLISION.

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.