Narrative:

Received taxi instructions to runway 36. Mistook active runway for runway 32L and crossed runway 36 without clearance. Was advised of crossing runway 36, but was given amended instructions to taxi to runway 32L for departure. No confusion on my or ATC's part. I just taxied to the wrong runway (32L) and crossed the active and instructed departure runway 36. Yellow caution lights (runway threshold) were operating properly. Supplemental information from acn 496085: captain and I concurred on new takeoff runway 36, then got clearance to take off from ground on runway 32L. As we taxied we thought we were crossing runway 32R but crossed runway 32L (the runway) we were to take off from. Then cleared to runway 36 and take off. No further issue. Expected runway 36 from ATIS, got runway 32L, then were still discussing runway 36.

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Original NASA ASRS Text

Title: E145 CREW HAD RWY INCURSION AT OMA.

Narrative: RECEIVED TAXI INSTRUCTIONS TO RWY 36. MISTOOK ACTIVE RWY FOR RWY 32L AND CROSSED RWY 36 WITHOUT CLRNC. WAS ADVISED OF XING RWY 36, BUT WAS GIVEN AMENDED INSTRUCTIONS TO TAXI TO RWY 32L FOR DEP. NO CONFUSION ON MY OR ATC'S PART. I JUST TAXIED TO THE WRONG RWY (32L) AND CROSSED THE ACTIVE AND INSTRUCTED DEP RWY 36. YELLOW CAUTION LIGHTS (RWY THRESHOLD) WERE OPERATING PROPERLY. SUPPLEMENTAL INFO FROM ACN 496085: CAPT AND I CONCURRED ON NEW TKOF RWY 36, THEN GOT CLRNC TO TAKE OFF FROM GND ON RWY 32L. AS WE TAXIED WE THOUGHT WE WERE XING RWY 32R BUT CROSSED RWY 32L (THE RWY) WE WERE TO TAKE OFF FROM. THEN CLRED TO RWY 36 AND TAKE OFF. NO FURTHER ISSUE. EXPECTED RWY 36 FROM ATIS, GOT RWY 32L, THEN WERE STILL DISCUSSING RWY 36.

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.