Narrative:

On takeoff roll on runway 17R I saw a B737 approaching the runway from taxiway F; at about the same time the tower told them to hold short of runway 17R. They stopped; then reported over the hold short line. As I saw the approaching aircraft in a high-speed taxi; I knew I was in the wrong; and was about to abort the takeoff; but at that time the tower issued the hold short and the B737 looked to be able to stop. So I continued rather than attempting a high-speed abort. The B737 looked to have their nose over the hold line; as we rotated. Some factors that attributed to the incident were; a communication problem with the flight attendant receiving IOE at the same time we were getting our position and hold instructions; which diverted some of my attention from the tower instructions. I was also anxious to get to our overnight because of the short night. Supplemental information from acn 710312: we were cleared to land runway 17L at mco. We made a visual approach and landed runway 17L. I was the PF. We cleared runway 17L at taxiway F. My first officer read back the instructions and I repeated them out loud. While taxiing west on taxiway F; the tower issued a new taxi clearance to us. We were now cleared to cross runway 17R at taxiway F; join taxiway G; north to the gate. Once again; my first officer read back our new clearance and I repeated them out loud. Tower also said traffic will be holding in position runway 17R. As we approached the intersection on runway 17R and taxiway F; I turned on all exterior lights; looked to my left and said; 'clear left.' my first officer said something like; 'this guy has a lot of lights on.' this is not what I expected to hear. I expected to hear 'clear right.' as I turned my head to the right; tower came up on frequency and told us to hold short of runway 17R. I braked aggressively to a stop. My nose gear was past the hold short lines; we were on runway 17R. My first officer told the tower; 'we have breached the runway.' I'm not sure why I did this; however; while my first officer was calling the tower; I turned off the exterior lights. Looking back; I think that was a mistake. Not 2 seconds later; an airplane took off in front of us. I'm not sure the type of jet (maybe a crj; EMB145 or MD80) or the company. After the jet goes by we are reclred to cross runway 17R taxiway G to the gate.

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Original NASA ASRS Text

Title: EMB145 FLT CREW TAKES OFF WITHOUT CLRNC AND CAUSES A TAXIING B737 FLT CREW TO HAVE A RWY INCURSION AT MCO.

Narrative: ON TKOF ROLL ON RWY 17R I SAW A B737 APCHING THE RWY FROM TXWY F; AT ABOUT THE SAME TIME THE TWR TOLD THEM TO HOLD SHORT OF RWY 17R. THEY STOPPED; THEN RPTED OVER THE HOLD SHORT LINE. AS I SAW THE APCHING ACFT IN A HIGH-SPD TAXI; I KNEW I WAS IN THE WRONG; AND WAS ABOUT TO ABORT THE TKOF; BUT AT THAT TIME THE TWR ISSUED THE HOLD SHORT AND THE B737 LOOKED TO BE ABLE TO STOP. SO I CONTINUED RATHER THAN ATTEMPTING A HIGH-SPD ABORT. THE B737 LOOKED TO HAVE THEIR NOSE OVER THE HOLD LINE; AS WE ROTATED. SOME FACTORS THAT ATTRIBUTED TO THE INCIDENT WERE; A COM PROB WITH THE FLT ATTENDANT RECEIVING IOE AT THE SAME TIME WE WERE GETTING OUR POS AND HOLD INSTRUCTIONS; WHICH DIVERTED SOME OF MY ATTN FROM THE TWR INSTRUCTIONS. I WAS ALSO ANXIOUS TO GET TO OUR OVERNIGHT BECAUSE OF THE SHORT NIGHT. SUPPLEMENTAL INFO FROM ACN 710312: WE WERE CLRED TO LAND RWY 17L AT MCO. WE MADE A VISUAL APCH AND LANDED RWY 17L. I WAS THE PF. WE CLRED RWY 17L AT TXWY F. MY FO READ BACK THE INSTRUCTIONS AND I REPEATED THEM OUT LOUD. WHILE TAXIING W ON TXWY F; THE TWR ISSUED A NEW TAXI CLRNC TO US. WE WERE NOW CLRED TO CROSS RWY 17R AT TXWY F; JOIN TXWY G; N TO THE GATE. ONCE AGAIN; MY FO READ BACK OUR NEW CLRNC AND I REPEATED THEM OUT LOUD. TWR ALSO SAID TFC WILL BE HOLDING IN POS RWY 17R. AS WE APCHED THE INTXN ON RWY 17R AND TXWY F; I TURNED ON ALL EXTERIOR LIGHTS; LOOKED TO MY L AND SAID; 'CLR L.' MY FO SAID SOMETHING LIKE; 'THIS GUY HAS A LOT OF LIGHTS ON.' THIS IS NOT WHAT I EXPECTED TO HEAR. I EXPECTED TO HEAR 'CLR R.' AS I TURNED MY HEAD TO THE R; TWR CAME UP ON FREQ AND TOLD US TO HOLD SHORT OF RWY 17R. I BRAKED AGGRESSIVELY TO A STOP. MY NOSE GEAR WAS PAST THE HOLD SHORT LINES; WE WERE ON RWY 17R. MY FO TOLD THE TWR; 'WE HAVE BREACHED THE RWY.' I'M NOT SURE WHY I DID THIS; HOWEVER; WHILE MY FO WAS CALLING THE TWR; I TURNED OFF THE EXTERIOR LIGHTS. LOOKING BACK; I THINK THAT WAS A MISTAKE. NOT 2 SECONDS LATER; AN AIRPLANE TOOK OFF IN FRONT OF US. I'M NOT SURE THE TYPE OF JET (MAYBE A CRJ; EMB145 OR MD80) OR THE COMPANY. AFTER THE JET GOES BY WE ARE RECLRED TO CROSS RWY 17R TXWY G TO THE GATE.

Data retrieved from NASA's ASRS site as of January 2009 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.