Air carrier flight crew describes a taxiway incursion caused by the captain's expectation bias to fo...

Narrative:

Received taxi instructions from ground. 'Charlie; alpha; sierra; clear to cross 27'. After reading back clearance my head was turned and I was busy with using ipad for charts due to efb inop. Captain made turn on victor to cross runway at sierra versus instructions to cross at charlie. I didn't notice turn until plane was too far established on victor; notified captain of our error had consequently received new taxi instructions/clearance from ground. After discussion captain indicated he had expectation bias on utilizing taxiway victor. There was also nonstandard clearance phraseology by ATC by saying 'clear to cross 27' instead of specifying which taxiway to cross the runway i.e. 'Clear to cross 27 on charlie; alpha; sierra.' ATC clearances should be given in sequential order of events to take place and eliminating any assumptions needed to interpret what was said.

Original NASA ASRS Text

Title: Air carrier flight crew describes a taxiway incursion caused by the Captain's expectation bias to follow the normal route; while this clearance was slightly different.

Narrative: Received taxi instructions from Ground. 'Charlie; Alpha; Sierra; clear to cross 27'. After reading back clearance my head was turned and I was busy with using iPad for charts due to EFB inop. Captain made turn on Victor to cross runway at Sierra versus instructions to cross at Charlie. I didn't notice turn until plane was too far established on Victor; notified Captain of our error had consequently received new taxi instructions/clearance from Ground. After discussion Captain indicated he had expectation bias on utilizing taxiway Victor. There was also nonstandard clearance phraseology by ATC by saying 'clear to cross 27' instead of specifying which taxiway to cross the runway i.e. 'Clear to cross 27 on Charlie; Alpha; Sierra.' ATC clearances should be given in sequential order of events to take place and eliminating any assumptions needed to interpret what was said.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1199442
Time
Date	201408
Local Time Of Day	0001-0600
Place
Locale Reference	MEM.Airport
State Reference	TN
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Clearance Ground Incursion Taxiway

Air carrier flight crew describes a taxiway incursion caused by the captain's expectation bias to follow the normal route; while this clearance was slightly different.