Potential less than standard separation between small transport X and small aircraft Y.

Attributes
ACN	155450
Time
Date	199008
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : cmi
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cmi
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	ground : holding ground other : taxi
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
ASRS Report	155450
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	155496
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 6000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

Runway 4L was in use. Small transport X was holding short of the 4L to taxi to runway 14R. Asked local control if I could cross and looked and saw no traffic on runway 4. He said go. I told the small transport X to cross. Small transport X said he would wait for the traffic landing. Local controller later said he didn't say 'go,' he said 'no.' supplemental information from acn 155496: runway 4L was active. Unbeknown to ground control, I had traffic landing runway 22R. Ground asked to cross runway 4L. I urgently replied 'no!' ground told his traffic to cross runway 4L. Many thanks to the alert small transport X pilot who saw the landing traffic and didn't cross.

Original NASA ASRS Text

Title: POTENTIAL LESS THAN STANDARD SEPARATION BETWEEN SMT X AND SMA Y.

Narrative: RWY 4L WAS IN USE. SMT X WAS HOLDING SHORT OF THE 4L TO TAXI TO RWY 14R. ASKED LCL CTL IF I COULD CROSS AND LOOKED AND SAW NO TFC ON RWY 4. HE SAID GO. I TOLD THE SMT X TO CROSS. SMT X SAID HE WOULD WAIT FOR THE TFC LNDG. LCL CTLR LATER SAID HE DIDN'T SAY 'GO,' HE SAID 'NO.' SUPPLEMENTAL INFO FROM ACN 155496: RWY 4L WAS ACTIVE. UNBEKNOWN TO GND CTL, I HAD TFC LNDG RWY 22R. GND ASKED TO CROSS RWY 4L. I URGENTLY REPLIED 'NO!' GND TOLD HIS TFC TO CROSS RWY 4L. MANY THANKS TO THE ALERT SMT X PLT WHO SAW THE LNDG TFC AND DIDN'T CROSS.

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.