Air carrier flight crew taxies to wrong runway at stl, enters runway without authorization.

Attributes
ACN	114641
Time
Date	198906
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : stl
State Reference	MO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : holding ground other : taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach landing other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 6800 flight time type : 800
ASRS Report	114641
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared to taxi to 30L. We were going to mdw so ATC sends you off the right side. Captain had in mind, we were going to 30R. Got to 30L and asked if we were cleared all the way. I called ground and they said 'yes'. I had my head down in my manual looking for tower frequency for 30L. I felt the aircraft turning and accelerating, looked up, saw an small transport Y on 1 or 2 mi final and started yelling to captain to 'stop' that he wasn't cleared to cross 30L. He had it in his mind that he was cleared all the way across 30L, not all the way to the end of runway 30L. We crossed hold line, but was short of runway. Small transport Y went around. I think that if I didn't have my head down, looking for a frequency, I would have been able to correct the captain. Keep your head outside.

Original NASA ASRS Text

Title: AIR CARRIER FLT CREW TAXIES TO WRONG RWY AT STL, ENTERS RWY WITHOUT AUTHORIZATION.

Narrative: CLRED TO TAXI TO 30L. WE WERE GOING TO MDW SO ATC SENDS YOU OFF THE R SIDE. CAPT HAD IN MIND, WE WERE GOING TO 30R. GOT TO 30L AND ASKED IF WE WERE CLRED ALL THE WAY. I CALLED GND AND THEY SAID 'YES'. I HAD MY HEAD DOWN IN MY MANUAL LOOKING FOR TWR FREQ FOR 30L. I FELT THE ACFT TURNING AND ACCELERATING, LOOKED UP, SAW AN SMT Y ON 1 OR 2 MI FINAL AND STARTED YELLING TO CAPT TO 'STOP' THAT HE WASN'T CLRED TO CROSS 30L. HE HAD IT IN HIS MIND THAT HE WAS CLRED ALL THE WAY ACROSS 30L, NOT ALL THE WAY TO THE END OF RWY 30L. WE CROSSED HOLD LINE, BUT WAS SHORT OF RWY. SMT Y WENT AROUND. I THINK THAT IF I DIDN'T HAVE MY HEAD DOWN, LOOKING FOR A FREQ, I WOULD HAVE BEEN ABLE TO CORRECT THE CAPT. KEEP YOUR HEAD OUTSIDE.

Data retrieved from NASA's ASRS site as of August 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.