Narrative:

Approaching #1 for takeoff at mci runway 1L, tower says the aircraft in front of us reported txwys and runway as poor braking and the painted numbers of runway 1L as nil. The aircraft was a DC9, and we watched him take off. We were given permission to take off, and after getting numbers for an intersection further down the runway, taxied around the painted numbers and took off. It wasn't until our arrival in chicago that I re-thought the event and noticed the book says company aircraft will not take off if any portion of the runway is nil -- even if that portion is behind us. In the future, if I hear 'nil braking,' I will stop the aircraft and try to ascertain exactly what is going on at the airport.

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Original NASA ASRS Text

Title: B737-700 CREW DEPARTED MCI RWY 1L FROM INTXN A10 WHEN BRAKING ACTION AT THE RWY NUMBERS WAS RPTED NIL.

Narrative: APCHING #1 FOR TKOF AT MCI RWY 1L, TWR SAYS THE ACFT IN FRONT OF US RPTED TXWYS AND RWY AS POOR BRAKING AND THE PAINTED NUMBERS OF RWY 1L AS NIL. THE ACFT WAS A DC9, AND WE WATCHED HIM TAKE OFF. WE WERE GIVEN PERMISSION TO TAKE OFF, AND AFTER GETTING NUMBERS FOR AN INTXN FURTHER DOWN THE RWY, TAXIED AROUND THE PAINTED NUMBERS AND TOOK OFF. IT WASN'T UNTIL OUR ARR IN CHICAGO THAT I RE-THOUGHT THE EVENT AND NOTICED THE BOOK SAYS COMPANY ACFT WILL NOT TAKE OFF IF ANY PORTION OF THE RWY IS NIL -- EVEN IF THAT PORTION IS BEHIND US. IN THE FUTURE, IF I HEAR 'NIL BRAKING,' I WILL STOP THE ACFT AND TRY TO ASCERTAIN EXACTLY WHAT IS GOING ON AT THE ARPT.

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.