B757 captain became distraction during taxi out and mistakenly passed active runway hold short line.

Attributes
ACN	531128
Time
Date	200111
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mia.airport
State Reference	FL
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	531128
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
ASRS Report	531123
Events
Anomaly	incursion : runway non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : issued alert
Supplementary
Problem Areas	Flight Crew Human Performance Airport ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Mia taxiway V and runway 12. After pushback from gate at mia, we taxied to spot X and contacted mia ground control for taxi instructions. They told us to taxi to runway 12 with no other taxi guidance. I elected to use taxiway V to taxiway Q to runway 12. While I was taxiing, my first officer was reselecting the new departure runway in the FMS and was heads down during this problem. I was temporarily distraction while he computed the new data for runway 12. At that time, I missed the turn onto taxiway Q and stopped across the hold short line for runway 12. Mia ground then told us to continue across runway 12 and to taxi to runway 9R at mia. We taxied to runway 9R and departed for sju without further incident.

Original NASA ASRS Text

Title: B757 CAPT BECAME DISTR DURING TAXI OUT AND MISTAKENLY PASSED ACTIVE RWY HOLD SHORT LINE.

Narrative: MIA TXWY V AND RWY 12. AFTER PUSHBACK FROM GATE AT MIA, WE TAXIED TO SPOT X AND CONTACTED MIA GND CTL FOR TAXI INSTRUCTIONS. THEY TOLD US TO TAXI TO RWY 12 WITH NO OTHER TAXI GUIDANCE. I ELECTED TO USE TXWY V TO TXWY Q TO RWY 12. WHILE I WAS TAXIING, MY FO WAS RESELECTING THE NEW DEP RWY IN THE FMS AND WAS HEADS DOWN DURING THIS PROB. I WAS TEMPORARILY DISTR WHILE HE COMPUTED THE NEW DATA FOR RWY 12. AT THAT TIME, I MISSED THE TURN ONTO TXWY Q AND STOPPED ACROSS THE HOLD SHORT LINE FOR RWY 12. MIA GND THEN TOLD US TO CONTINUE ACROSS RWY 12 AND TO TAXI TO RWY 9R AT MIA. WE TAXIED TO RWY 9R AND DEPARTED FOR SJU WITHOUT FURTHER INCIDENT.

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.