MD80 entered runway at stl without ATC clearance.

Attributes
ACN	582828
Time
Date	200305
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : stl.airport
State Reference	MO
Altitude	agl single value : 0
Environment
Light	Dusk
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	ground : holding ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : stl.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	ground : position and hold
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	582828
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : far non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Asked to angle from spot X to taxiway north for departure from runway 30R. ATC issued, 'continue hold short south.' began taxi but stopped aircraft to clarify clearance as no specific clearance to cross runway 30L had been issued. Aircraft was 20-30 ft beyond hold short line. Aircraft in takeoff position on runway 30L had to taxi clear of runway 30L to allow arrival of aircraft on 2 mi final.

Original NASA ASRS Text

Title: MD80 ENTERED RWY AT STL WITHOUT ATC CLRNC.

Narrative: ASKED TO ANGLE FROM SPOT X TO TXWY N FOR DEP FROM RWY 30R. ATC ISSUED, 'CONTINUE HOLD SHORT S.' BEGAN TAXI BUT STOPPED ACFT TO CLARIFY CLRNC AS NO SPECIFIC CLRNC TO CROSS RWY 30L HAD BEEN ISSUED. ACFT WAS 20-30 FT BEYOND HOLD SHORT LINE. ACFT IN TKOF POS ON RWY 30L HAD TO TAXI CLR OF RWY 30L TO ALLOW ARR OF ACFT ON 2 MI FINAL.

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.