HDG TRACK DEV.

Narrative

THE GLASS COCKPIT WAS SET UP FOR AND BRIEFED FOR A DEP ON RWY 9L AT ORD. ON TAXI OUT; GND CTL CLRED US TO TAXI TO RWY 32L AT THE T1 INTXN; WHICH FROM OUR LOCATION WOULD BE A SHORT TAXI OUT. WE NOTICED THAT WE APPEARED TO BE #1 FOR 32L AS I TURNED FROM THE INNER TAXIWAY ONTO T3. AS WE JOINED THE 14R PARALLEL; WE BEGAN THE BEFORE TKOF CHKLIST. HALFWAY THROUGH IT; TWR ASKED US IF WE WERE READY FOR TKOF; I ANSWERED IN THE AFFIRMATIVE. OUR POS WAS APCHING T2 HOWEVER I THOUGHT WE WERE AT T1 (DARK OUTSIDE; DISTRACTED BY CHKLIST). TWR CLRED US FOR TKOF; AND A HDG OF 070 AFTER DEP. AS I TOOK THE RWY (STILL 90 DEGS TO CTRLINE) I REALIZED WE WERE AT 32L AT T2 NOT T1. ABOUT THIS TIME TWR CALLED TO ADVISE US OF SAME; AND I REQUESTED BACK TAXI TO T1; TWR APPROVED. LINED UP; FO CONFIRMED STILL CLRED FOR TKOF; STARTED TKOF ROLL. CLBING THROUGH 300 FT AGL; I ADVISED FO HE COULD START THE TURN TO 070 ANY TIME; AND AT 400 FT AGL PUSHED THE HDG SELECT BUTTON (WHICH IS THE MIN ALT FOR ENGAGEMENT; AND WAS PRESELECTED TO 070). THE FO STARTED TURNING L AND THE ERROR DID NOT SINK IN BEFORE THE TWR CALLED 'R TO 070; R TURN!' THE FO RAPIDLY CORRECTED; BEFORE WE HAD TURNED MORE THAN 10-15 DEGS. I THINK THIS ERROR OCCURRED BECAUSE: 1) WE SET UP INITIALLY FOR A 9L DEP (THE QUICKEST WAY TO 070 FROM 090 IS A L TURN) AND BECAUSE OF THE SHORT TAXI; HIGH WORKLOAD; (CHKLISTS; CHKING RWY PERFORMANCE DATA; ETC) IN OUR MINDS WE DIDN'T ACCEPT OR HAVE TIME TO ACCEPT THAT NOW 32L NOT 9L WAS OUR DEP RWY. 2) ALLOWING MYSELF TO GET RUSHED BY ATC (GND AND TWR); RESULTING IN AN ERROR CHAIN STARTING WITH TAKING THE RWY AT THE WRONG INTXN. SUPPLEMENTAL INFO FROM ACN 204930: OUR MISTAKE WAS IN ALLOWING TWR TO RUSH US INTO AN IMMEDIATE TKOF BEFORE WE DISCUSSED THE DEP FROM A DIFFERENT RWY THAN PLANNED.