ALT BUST.

Narrative

WE RECEIVED OUR CLRNC VIA ACARS/PDC AT ORLANDO INTL ARPT; WHICH CLRLY STATED 'MCCOY 2 DEP; MAINTAIN 5000 FT' ETC... WE THEN PUT 12000 FT IN THE ALT ALERTER IN ERROR. WE WERE CLRED FOR TKOF; TOLD TO FLY HDG 140 DEGS. AFTER TKOF; TWR SWITCHED US TO DEP LATE; I THINK I CHKED IN WITH 'LEAVING 8000 FT 12000 FT.' DEP CTL ASKED US HOW WE GOT 12000 FT AND WE THEN RECHKED THE ACARS AND SAW 5000 FT ASSIGNED. I CALLED THE ATC SUPVR IN MCO AFTER OUR ARR AT OUR DEST (DCA); AND FOUND OUT THERE HAD BEEN NO CONFLICT. I WAS COMPLACENT IN THIS INCIDENT; AND HAVE NO ONE TO BLAME BUT MYSELF. THE WX WAS GOOD; THE FO AN EXCELLENT PLT (WITH MORE EXPERIENCE IN THE PARTICULAR ACFT THEN ME); A SIMPLE DEP PROC; ALL CONTRIBUTED TO A LESS THAN VIGILANT ATTITUDE. I LEARNED ONCE AGAIN THAT YOU CAN NEVER RELAX IN THIS BUSINESS UNTIL YOU LEAVE THE ARPT. SUPPLEMENTAL INFO FROM ACN 229022. OUR OUTBOUND ACFT ARRIVED AT THE GATE JUST 20 MINS PRIOR TO SCHEDULED DEP. UPON COMPLETION OF MY WALK AROUND; THE BOARDING PROCESS HAD ALREADY BEGUN; SO I QUICKLY REQUESTED A CLRNC VIA ACARS. I SET THE PROPER SQUAWK AND DEP FREQ AND OBSERVED THAT WE HAD A 250 KT RESTRICTION UNTIL ADVISED BY ATC. THE CAPT AND I DISCUSSED HOW THEY GENERALLY RESTRICT YOU TO 250 KTS UNTIL OUT OF 12000 FT. I SET 12000 FT IN THE FMS AND ALSO IN THE ALT ALERTER (INCORRECTLY BECAUSE THE CLRNC WAS TO 5000 FT NOT 12000 FT). WE BOTH REVIEWED THE CLRNC AND THE DEP BOTH OF WHICH LISTED 5000 FT AS THE INITIAL CLB ALT; BUT SOMEHOW WE WERE BOTH FIXATED ON THE SPD RESTRICTION AND THE FACT THAT IT WAS USUALLY LIFTED AT 12000 FT. WE KEPT SAYING TO EACH OTHER THE INITIAL ALT WAS 12000 FT AND NEVER REALIZED THAT THIS WAS THE INCORRECT ALT. WE WERE CLRED FOR TKOF AND AT OUR TKOF WT OF ABOUT 106000 POUNDS THE ACFT CLBED AT MORE THAN 4000 FPM. I FEEL THAT A NUMBER OF THINGS CONTRIBUTED TO THE EXCURSION BUT I THINK THE MOST IMPORTANT FACTORS WERE; WE WERE IN A HURRY; THAT WE FIXATED ON THE SPD RESTRICTION (AND THE FACT THAT IT IS USUALLY RESCINDED AT 12000 FT); THAT THE TWR DID NOT SWITCH US TO DEP QUICKLY ENOUGH. I STILL CANNOT BELIEVE I COULD MAKE SUCH A STUPID MISTAKE!