BA41 crew had runway incursion.

Attributes
ACN	437258
Time
Date	199905
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : stl.airport
State Reference	MO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mroc.tower
Operator	common carrier : air carrier
Make Model Name	Jetstream 41
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : stl.tower
Operator	common carrier : air carrier
Make Model Name	Jetstream 32
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 4500 flight time type : 250
ASRS Report	437258
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	incursion : runway non adherence : published procedure non adherence : far
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Taxiing out, we were told to pull up close behind a J32. As we crossed runway 12L to get to runway 12R, we followed the J32. He pulled out onto runway 6. We started to follow and stopped just prior to entry onto runway 6. Tower called and asked where we were going. What may have led to this is a radio change crossing runway 12L. At no time did our aircraft enter runway 6.

Original NASA ASRS Text

Title: BA41 CREW HAD RWY INCURSION.

Narrative: TAXIING OUT, WE WERE TOLD TO PULL UP CLOSE BEHIND A J32. AS WE CROSSED RWY 12L TO GET TO RWY 12R, WE FOLLOWED THE J32. HE PULLED OUT ONTO RWY 6. WE STARTED TO FOLLOW AND STOPPED JUST PRIOR TO ENTRY ONTO RWY 6. TWR CALLED AND ASKED WHERE WE WERE GOING. WHAT MAY HAVE LED TO THIS IS A RADIO CHANGE XING RWY 12L. AT NO TIME DID OUR ACFT ENTER RWY 6.

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.