Pbi controller clears aircraft for departure with aircraft crossing downfield.

Attributes
ACN	608142
Time
Date	200402
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pbi.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Weather Elements	other
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	IAI1124/1124A/Westwind
Operating Under FAR Part	Part 91
Flight Phase	ground : takeoff roll ground : position and hold
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : pbi.tower
Operator	general aviation : corporate
Make Model Name	Citationjet, C525/C526
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : developmental controller : radar controller : military
Experience	controller military : 4 controller radar : 17 controller supervisory : 3 controller time certified in position1 : 0
ASRS Report	608142
Person 2
Affiliation	other
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Miss Distance	horizontal : 6000
Supplementary
Problem Areas	ATC Human Performance ATC Facility
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure Operational Error

Narrative:

WW24 in position runway 9L. C525 was crossing at taxiway J (over 9000 ft downfield).scanned runway, was conducting a relief briefing. Ground controller was busy and through the session routinely did not call runway clear. After briefing was nearly complete, I scanned runway 9L again looking around window mullion (brace). I felt runway was clear of all aircraft. Cleared WW24 for takeoff and apparently C525 was still on a portion of runway 9L 9000 ft downfield. Briefing was in progress. Downfield visibility is very poor due to short tower. Window brace is in direct line of sight of taxiway J. C525 is very low profile aircraft. Ground control too busy to call 'crossing complete.' hazy WX.

Original NASA ASRS Text

Title: PBI CTLR CLRS ACFT FOR DEP WITH ACFT XING DOWNFIELD.

Narrative: WW24 IN POS RWY 9L. C525 WAS XING AT TXWY J (OVER 9000 FT DOWNFIELD).SCANNED RWY, WAS CONDUCTING A RELIEF BRIEFING. GND CTLR WAS BUSY AND THROUGH THE SESSION ROUTINELY DID NOT CALL RWY CLR. AFTER BRIEFING WAS NEARLY COMPLETE, I SCANNED RWY 9L AGAIN LOOKING AROUND WINDOW MULLION (BRACE). I FELT RWY WAS CLR OF ALL ACFT. CLRED WW24 FOR TKOF AND APPARENTLY C525 WAS STILL ON A PORTION OF RWY 9L 9000 FT DOWNFIELD. BRIEFING WAS IN PROGRESS. DOWNFIELD VISIBILITY IS VERY POOR DUE TO SHORT TWR. WINDOW BRACE IS IN DIRECT LINE OF SIGHT OF TXWY J. C525 IS VERY LOW PROFILE ACFT. GND CTL TOO BUSY TO CALL 'XING COMPLETE.' HAZY WX.

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.