Air carrier widebody transport unauthorized runway crossing.

Attributes
ACN	116575
Time
Date	198907
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp
State Reference	MN
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, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	ground : holding 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 : 6600 flight time type : 550
ASRS Report	116575
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 185 flight time total : 7283 flight time type : 160
ASRS Report	116577
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation

Narrative:

On initial check-in with ground control at msp we were advised 'cleared to runway 11R, hold short of 4/12'. Copilot acknowledged taxi instructions including hold short. Upon reaching 4/22 crossing we were cleared to 'follow an air carrier Y medium large transport to 11R'. Air carrier Y was then 'cleared to cross 4/22'. Air carrier Y confirmed 'cleared to cross 4/22?' and ground replied 'cleared to cross 4/22. We understood our clearance to 'follow air carrier Y' as a new clearance to 11R. The ground controller indicated that he intended our clearance to follow air carrier Y medium large transport as a sequenced clearance only, and that we were expected to hold short of 4/22. We crossed 4/22 behind air carrier Y as cleared. No traffic conflict occurred.

Original NASA ASRS Text

Title: ACR WDB UNAUTH RWY CROSSING.

Narrative: ON INITIAL CHECK-IN WITH GND CTL AT MSP WE WERE ADVISED 'CLRED TO RWY 11R, HOLD SHORT OF 4/12'. COPLT ACKNOWLEDGED TAXI INSTRUCTIONS INCLUDING HOLD SHORT. UPON REACHING 4/22 XING WE WERE CLRED TO 'FOLLOW AN ACR Y MLG TO 11R'. ACR Y WAS THEN 'CLRED TO CROSS 4/22'. ACR Y CONFIRMED 'CLRED TO CROSS 4/22?' AND GND REPLIED 'CLRED TO CROSS 4/22. WE UNDERSTOOD OUR CLRNC TO 'FOLLOW ACR Y' AS A NEW CLRNC TO 11R. THE GND CTLR INDICATED THAT HE INTENDED OUR CLRNC TO FOLLOW ACR Y MLG AS A SEQUENCED CLRNC ONLY, AND THAT WE WERE EXPECTED TO HOLD SHORT OF 4/22. WE CROSSED 4/22 BEHIND ACR Y AS CLRED. NO TFC CONFLICT OCCURRED.

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.