Unauthorized runway crossing entry operation.

Attributes
ACN	260236
Time
Date	199401
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 100 flight time total : 15000 flight time type : 70
ASRS Report	260236
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 50 flight time total : 12000 flight time type : 20
ASRS Report	260235
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far other anomaly other other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While taxiing off runway 31R onto taxiway 18, we received instructions to cross runway 35R, turn left on lima, and contact ground control. Being unfamiliar with that area of the airport, I looked down at the airport diagram. The captain asked for the after landing checklist and if we were cleared to cross. Neither of us understood the clearance completely. I asked the tower to 'say again' at least 1 more time and it may have been twice. Since we were already crossing runway 35R, we heard cleared to cross again ('anticipating' 35L) and still looking for taxiway lima. When we found ourselves at kilo, we both realized that lima was behind us and the runway we had just crossed was an active runway without clearance. Other factors: neither the captain nor I had been in that area of the airport before. It was the captain's first landing in that type of aircraft. I am a low-time first officer in that type of airplane. Anticipation -- normally when told to switch to ground control at most airports, you are cleared to cross active runways. Supplemental information from acn 260235: I did not know where 'lima' was and asked copilot. He was looking up maps and doing after landing checklists and did not answer. I looked for lima sign but did not see one. An aircraft was on short final for runway 35R so I was trying to hustle a heavy ship across and probably missed the lima sign between runway 35R/35L (I assume it's there). We received clearance again to turn left on lima -- now I had a mindset it was on the other side of runway 35L. We both looked and saw no aircraft on runway 35L and continued across. I also thought that because we were on ground, he hand crossed us. It also was my first landing after training in this craft. I was also trying to adjust my cockpit lights (which I could not find). I should have stopped the moment I was not absolutely sure of the clearance. Although we had taxi maps handy, lima was not easily apparent to us. I believe I heard what I expected, 'cross 35L,' not what the controller said, because it was the second or third clearance to cross.

Original NASA ASRS Text

Title: UNAUTH RWY XING ENTRY OP.

Narrative: WHILE TAXIING OFF RWY 31R ONTO TXWY 18, WE RECEIVED INSTRUCTIONS TO CROSS RWY 35R, TURN L ON LIMA, AND CONTACT GND CTL. BEING UNFAMILIAR WITH THAT AREA OF THE ARPT, I LOOKED DOWN AT THE ARPT DIAGRAM. THE CAPT ASKED FOR THE AFTER LNDG CHKLIST AND IF WE WERE CLRED TO CROSS. NEITHER OF US UNDERSTOOD THE CLRNC COMPLETELY. I ASKED THE TWR TO 'SAY AGAIN' AT LEAST 1 MORE TIME AND IT MAY HAVE BEEN TWICE. SINCE WE WERE ALREADY XING RWY 35R, WE HEARD CLRED TO CROSS AGAIN ('ANTICIPATING' 35L) AND STILL LOOKING FOR TXWY LIMA. WHEN WE FOUND OURSELVES AT KILO, WE BOTH REALIZED THAT LIMA WAS BEHIND US AND THE RWY WE HAD JUST CROSSED WAS AN ACTIVE RWY WITHOUT CLRNC. OTHER FACTORS: NEITHER THE CAPT NOR I HAD BEEN IN THAT AREA OF THE ARPT BEFORE. IT WAS THE CAPT'S FIRST LNDG IN THAT TYPE OF ACFT. I AM A LOW-TIME FO IN THAT TYPE OF AIRPLANE. ANTICIPATION -- NORMALLY WHEN TOLD TO SWITCH TO GND CTL AT MOST ARPTS, YOU ARE CLRED TO CROSS ACTIVE RWYS. SUPPLEMENTAL INFO FROM ACN 260235: I DID NOT KNOW WHERE 'LIMA' WAS AND ASKED COPLT. HE WAS LOOKING UP MAPS AND DOING AFTER LNDG CHKLISTS AND DID NOT ANSWER. I LOOKED FOR LIMA SIGN BUT DID NOT SEE ONE. AN ACFT WAS ON SHORT FINAL FOR RWY 35R SO I WAS TRYING TO HUSTLE A HVY SHIP ACROSS AND PROBABLY MISSED THE LIMA SIGN BTWN RWY 35R/35L (I ASSUME IT'S THERE). WE RECEIVED CLRNC AGAIN TO TURN L ON LIMA -- NOW I HAD A MINDSET IT WAS ON THE OTHER SIDE OF RWY 35L. WE BOTH LOOKED AND SAW NO ACFT ON RWY 35L AND CONTINUED ACROSS. I ALSO THOUGHT THAT BECAUSE WE WERE ON GND, HE HAND CROSSED US. IT ALSO WAS MY FIRST LNDG AFTER TRAINING IN THIS CRAFT. I WAS ALSO TRYING TO ADJUST MY COCKPIT LIGHTS (WHICH I COULD NOT FIND). I SHOULD HAVE STOPPED THE MOMENT I WAS NOT ABSOLUTELY SURE OF THE CLRNC. ALTHOUGH WE HAD TAXI MAPS HANDY, LIMA WAS NOT EASILY APPARENT TO US. I BELIEVE I HEARD WHAT I EXPECTED, 'CROSS 35L,' NOT WHAT THE CTLR SAID, BECAUSE IT WAS THE SECOND OR THIRD CLRNC TO CROSS.

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.