An air carrier widebody transport taxied across the end of runway 28C at pit without clearance.

Attributes
ACN	227870
Time
Date	199212
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pit
State Reference	PA
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	Widebody, Low Wing, 2 Turbojet Eng
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 : atp
Experience	flight time last 90 days : 180 flight time total : 7500 flight time type : 990
ASRS Report	227870
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	incursion : runway non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airport	other physical facility

Narrative:

We landed on 28L at pit and turned off the active runway on highspd taxiway C-3. Once clear of the runway we contacted ground control. ATC cleared us via charlie to the ramp. ATC should have noticed that we were already past charlie taxiway. In the confusion of trying to find charlie taxiway and determine the route, we continued straight ahead thinking we were on the correct taxiway. Prior to crossing 10C, I looked right to make sure there was nothing on the runway. After crossing the runway, ATC asked, do you know you are not on charlie taxiway and that we had crossed an active runway. We then realized we were on the wrong taxiway, ATC then cleared us to the ramp. ATC should have looked and noticed we had passed taxiway charlie. Short distance from highspd taxiway to another active runway. Taxiing the most practical way to the ramp. Very poorly marked and all different names and numbers for taxiways, and given by ATC as if you live there. Coming off highspd taxiway trying to get frequency for ground, ramp, calling company, as well as trying to listen, understand and figure out your taxi route.

Original NASA ASRS Text

Title: AN ACR WDB TAXIED ACROSS THE END OF RWY 28C AT PIT WITHOUT CLRNC.

Narrative: WE LANDED ON 28L AT PIT AND TURNED OFF THE ACTIVE RWY ON HIGHSPD TAXIWAY C-3. ONCE CLR OF THE RWY WE CONTACTED GND CTL. ATC CLRED US VIA CHARLIE TO THE RAMP. ATC SHOULD HAVE NOTICED THAT WE WERE ALREADY PAST CHARLIE TAXIWAY. IN THE CONFUSION OF TRYING TO FIND CHARLIE TAXIWAY AND DETERMINE THE RTE, WE CONTINUED STRAIGHT AHEAD THINKING WE WERE ON THE CORRECT TAXIWAY. PRIOR TO XING 10C, I LOOKED R TO MAKE SURE THERE WAS NOTHING ON THE RWY. AFTER XING THE RWY, ATC ASKED, DO YOU KNOW YOU ARE NOT ON CHARLIE TAXIWAY AND THAT WE HAD CROSSED AN ACTIVE RWY. WE THEN REALIZED WE WERE ON THE WRONG TAXIWAY, ATC THEN CLRED US TO THE RAMP. ATC SHOULD HAVE LOOKED AND NOTICED WE HAD PASSED TAXIWAY CHARLIE. SHORT DISTANCE FROM HIGHSPD TAXIWAY TO ANOTHER ACTIVE RWY. TAXIING THE MOST PRACTICAL WAY TO THE RAMP. VERY POORLY MARKED AND ALL DIFFERENT NAMES AND NUMBERS FOR TAXIWAYS, AND GIVEN BY ATC AS IF YOU LIVE THERE. COMING OFF HIGHSPD TAXIWAY TRYING TO GET FREQ FOR GND, RAMP, CALLING COMPANY, AS WELL AS TRYING TO LISTEN, UNDERSTAND AND FIGURE OUT YOUR TAXI RTE.

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.