Operational error occurred when a BE55 took off with a military HU25 crossing the runway at mid-fiel...

Attributes
ACN	336048
Time
Date	199605
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mob
State Reference	AL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Baron 55/Cochise
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff
Flight Plan	VFR
Aircraft 2
Operator	other
Make Model Name	Dassault-Breguet Undifferentiated or Other Model
Operating Under FAR Part	other : other
Flight Phase	ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Experience	controller military : 10 controller radar : 16 controller supervisory : 7
ASRS Report	336048
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : ground less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 3000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

The HU25 was cleared to cross the active runway, meanwhile a BE55 called ready for takeoff, just as I was about to issue an IFR clearance to another aircraft. I cleared the BE55 for takeoff, and then issued the IFR clearance to another aircraft. As I returned my scan to the departing BE55, who was rolling now, I saw the HU25 crossing mid-runway at the runway mid-point. The HU25 cleared the runway as the BE55 rotated, closest point 1/2 mi of concrete. Lesson learned, scan!!

Original NASA ASRS Text

Title: OPERROR OCCURRED WHEN A BE55 TOOK OFF WITH A MIL HU25 XING THE RWY AT MID-FIELD.

Narrative: THE HU25 WAS CLRED TO CROSS THE ACTIVE RWY, MEANWHILE A BE55 CALLED READY FOR TKOF, JUST AS I WAS ABOUT TO ISSUE AN IFR CLRNC TO ANOTHER ACFT. I CLRED THE BE55 FOR TKOF, AND THEN ISSUED THE IFR CLRNC TO ANOTHER ACFT. AS I RETURNED MY SCAN TO THE DEPARTING BE55, WHO WAS ROLLING NOW, I SAW THE HU25 XING MID-RWY AT THE RWY MID-POINT. THE HU25 CLRED THE RWY AS THE BE55 ROTATED, CLOSEST POINT 1/2 MI OF CONCRETE. LESSON LEARNED, SCAN!!

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.

Operational error occurred when a BE55 took off with a military HU25 crossing the runway at mid-field.