A300 taxiing for departure at pdx enters active runway.

Attributes
ACN	573322
Time
Date	200302
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pdx.airport
State Reference	OR
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
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
Experience	flight time last 90 days : 180 flight time total : 19200 flight time type : 4493
ASRS Report	573322
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time total : 3500
ASRS Report	573324
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to original clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Left gate with clearance 'taxi to runway 28R' taxied on A5 and mistakenly passed taxiway a and entered runway 28R and immediately contacted ground. Exited runway at A4. Human factors: 1) first officer, heads down for weights, and came heads up as I entered runway. 2) captain, distracted by new numbers and missed proper taxiway.

Original NASA ASRS Text

Title: A300 TAXIING FOR DEP AT PDX ENTERS ACTIVE RWY.

Narrative: LEFT GATE WITH CLRNC 'TAXI TO RWY 28R' TAXIED ON A5 AND MISTAKENLY PASSED TXWY A AND ENTERED RWY 28R AND IMMEDIATELY CONTACTED GND. EXITED RWY AT A4. HUMAN FACTORS: 1) FO, HEADS DOWN FOR WTS, AND CAME HEADS UP AS I ENTERED RWY. 2) CAPT, DISTRACTED BY NEW NUMBERS AND MISSED PROPER TXWY.

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.