Narrative:

During the before starting engine checklist at transponder, I asked the first officer if we had an ATC clearance. He responded that we did and the numbers in the transponder were correct. I failed to verify this and the remainder of the clearance, since the first officer informed me we were cleared as filed. Shortly after takeoff the tower informed us we were squawking the wrong code and gave us one, different from the one that was set in, at the gate. We were then instructed to contact departure. We got no response on the departure control frequency that was set in the VHF set. As I was flying, the first officer reviewed his miami approach plates and tuned in the proper frequency. He then reviewed the ACARS generated clearance. It was for the correct flight number and date. Unfortunately, it was for the inbound flight to miami and not the outbound leg. This clearance was requested approximately 20 mins before departure, and long after the arrival of the inbound flight. In the past, I've probably reviewed 99 percent of the ACARS generated clrncs. In the future it will be 100 percent. I failed to mention that the first officer requested another clearance and the proper one was received, after he discovered the mistake. I am a little surprised that no one but the crew seemed to know that we departed miami without a proper clearance.

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Original NASA ASRS Text

Title: LGT DEPARTS WITHOUT PDC.

Narrative: DURING THE BEFORE STARTING ENG CHKLIST AT XPONDER, I ASKED THE FO IF WE HAD AN ATC CLRNC. HE RESPONDED THAT WE DID AND THE NUMBERS IN THE XPONDER WERE CORRECT. I FAILED TO VERIFY THIS AND THE REMAINDER OF THE CLRNC, SINCE THE FO INFORMED ME WE WERE CLRED AS FILED. SHORTLY AFTER TKOF THE TWR INFORMED US WE WERE SQUAWKING THE WRONG CODE AND GAVE US ONE, DIFFERENT FROM THE ONE THAT WAS SET IN, AT THE GATE. WE WERE THEN INSTRUCTED TO CONTACT DEP. WE GOT NO RESPONSE ON THE DEP CTL FREQ THAT WAS SET IN THE VHF SET. AS I WAS FLYING, THE FO REVIEWED HIS MIAMI APCH PLATES AND TUNED IN THE PROPER FREQ. HE THEN REVIEWED THE ACARS GENERATED CLRNC. IT WAS FOR THE CORRECT FLT NUMBER AND DATE. UNFORTUNATELY, IT WAS FOR THE INBOUND FLT TO MIAMI AND NOT THE OUTBOUND LEG. THIS CLRNC WAS REQUESTED APPROX 20 MINS BEFORE DEP, AND LONG AFTER THE ARR OF THE INBOUND FLT. IN THE PAST, I'VE PROBABLY REVIEWED 99 PERCENT OF THE ACARS GENERATED CLRNCS. IN THE FUTURE IT WILL BE 100 PERCENT. I FAILED TO MENTION THAT THE FO REQUESTED ANOTHER CLRNC AND THE PROPER ONE WAS RECEIVED, AFTER HE DISCOVERED THE MISTAKE. I AM A LITTLE SURPRISED THAT NO ONE BUT THE CREW SEEMED TO KNOW THAT WE DEPARTED MIAMI WITHOUT A PROPER CLRNC.

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.