Air carrier medium large transport unauthorized runway crossing entry.

Attributes
ACN	91231
Time
Date	198807
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 3000 flight time type : 1200
ASRS Report	91231
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ATC had cleared us to our gate via the inner ramp after landing on runway 3C at dtw. I had finished the after landing checklist and had called ramp control. I came back to the ground frequency that the captain had been monitoring. We were half way past our turn when I questioned the captain about our taxi clearance. He had missed the turn, we were almost about to cross 9-27 so I called ground and told them we had missed our turn and asked if we could taxi down 9-27 which was inactive according to the ATIS. We watched an small aircraft taxi into takeoff position after we were already on the runway. Ground said that tower had cleared them for takeoff. We taxied clear off the runway and into our gate uneventfully. It was the last leg of a long day. We had get homeitis, so the captain was taxiing faster than normal. It could have been prevented by taxiing slower so that once we realized we missed our turn we could have stopped the aircraft west/O slamming on the brakes. I do not hesitate now to tell the captain 'where's the fire?'.

Original NASA ASRS Text

Title: ACR MLG UNAUTH RWY CROSSING ENTRY.

Narrative: ATC HAD CLRED US TO OUR GATE VIA THE INNER RAMP AFTER LNDG ON RWY 3C AT DTW. I HAD FINISHED THE AFTER LNDG CHKLIST AND HAD CALLED RAMP CTL. I CAME BACK TO THE GND FREQ THAT THE CAPT HAD BEEN MONITORING. WE WERE HALF WAY PAST OUR TURN WHEN I QUESTIONED THE CAPT ABOUT OUR TAXI CLRNC. HE HAD MISSED THE TURN, WE WERE ALMOST ABOUT TO CROSS 9-27 SO I CALLED GND AND TOLD THEM WE HAD MISSED OUR TURN AND ASKED IF WE COULD TAXI DOWN 9-27 WHICH WAS INACTIVE ACCORDING TO THE ATIS. WE WATCHED AN SMA TAXI INTO TKOF POS AFTER WE WERE ALREADY ON THE RWY. GND SAID THAT TWR HAD CLRED THEM FOR TKOF. WE TAXIED CLR OFF THE RWY AND INTO OUR GATE UNEVENTFULLY. IT WAS THE LAST LEG OF A LONG DAY. WE HAD GET HOMEITIS, SO THE CAPT WAS TAXIING FASTER THAN NORMAL. IT COULD HAVE BEEN PREVENTED BY TAXIING SLOWER SO THAT ONCE WE REALIZED WE MISSED OUR TURN WE COULD HAVE STOPPED THE ACFT W/O SLAMMING ON THE BRAKES. I DO NOT HESITATE NOW TO TELL THE CAPT 'WHERE'S THE FIRE?'.

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.