Small aircraft X taxied across the runway in front of small aircraft Z departing.

Attributes
ACN	173188
Time
Date	199102
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : vrb
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	ground other : taxi
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : takeoff
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
ASRS Report	173188
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	controller : issued new clearance none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 2400
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Small aircraft X landed on runway 11L and after contacting ground control as instructed to hold short of runway 11R. While small aircraft X was holding, small aircraft Y landed on runway 11R and turned off on ry 22 intersection. Small aircraft Z was then cleared for takeoff on runway 11R. Almost simultaneously the ground controller instructed small aircraft X to taxi straight ahead causing a runway crossing error with the aircraft that had been cleared for takeoff. The ground controller inadvertently transposed aircraft call signs between small aircraft X and the small aircraft Y that had turned off on runway 22. The intent was for the aircraft on runway 22 to taxi straight ahead and not for small aircraft X to cross the runway. The ground controller was immediately aware of the error, and instructed small aircraft X to hold, but not in time to prevent the error. No evasive action taken, closest proximity between small aircraft Z and small aircraft X was 2400' with the departure not yet airborne. Human error caused by transposing call signs.

Original NASA ASRS Text

Title: SMA X TAXIED ACROSS THE RWY IN FRONT OF SMA Z DEPARTING.

Narrative: SMA X LANDED ON RWY 11L AND AFTER CONTACTING GND CTL AS INSTRUCTED TO HOLD SHORT OF RWY 11R. WHILE SMA X WAS HOLDING, SMA Y LANDED ON RWY 11R AND TURNED OFF ON RY 22 INTXN. SMA Z WAS THEN CLRED FOR TKOF ON RWY 11R. ALMOST SIMULTANEOUSLY THE GND CTLR INSTRUCTED SMA X TO TAXI STRAIGHT AHEAD CAUSING A RWY XING ERROR WITH THE ACFT THAT HAD BEEN CLRED FOR TKOF. THE GND CTLR INADVERTENTLY TRANSPOSED ACFT CALL SIGNS BTWN SMA X AND THE SMA Y THAT HAD TURNED OFF ON RWY 22. THE INTENT WAS FOR THE ACFT ON RWY 22 TO TAXI STRAIGHT AHEAD AND NOT FOR SMA X TO CROSS THE RWY. THE GND CTLR WAS IMMEDIATELY AWARE OF THE ERROR, AND INSTRUCTED SMA X TO HOLD, BUT NOT IN TIME TO PREVENT THE ERROR. NO EVASIVE ACTION TAKEN, CLOSEST PROX BTWN SMA Z AND SMA X WAS 2400' WITH THE DEP NOT YET AIRBORNE. HUMAN ERROR CAUSED BY TRANSPOSING CALL SIGNS.

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.