Narrative:

I was scheduled to fly atl-fll and fll-lga. Due to WX in atl, we blocked 2 hours 15 mins to fll. As we departed fll for lga, a northeast [wind] started dumping snow at lga. We held at 3 places before finally diverting to bwi. We blocked 4 hours 42 mins for a total of 6 hours and 57 mins. The ground people at bwi said they needed the gate and that we were to take the aircraft back to fll. Due to the WX, the captain and I thought we were operating under irregular operations, which made us legal to fly over 8 hours. In addition, the company hadn't updated our rotation (trip), so the system didn't (flag) catch the problem until we were airborne en route to fll. Somewhere near columbia, sc, we were notified to divert to atl because we were no longer legal to fly. My mistake was my misconception that we could fly over 8 hours during irregular operations, even once we had departed our scheduled trip. I now know this isn't the case.

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Original NASA ASRS Text

Title: AN ACR CREW IS SCHEDULED TO FLY OVER 8 HRS IN NON COMPLIANCE WITH THE REG WHEN A REPOS OF THE ACFT IS TACKED ONTO THEIR SCHEDULE.

Narrative: I WAS SCHEDULED TO FLY ATL-FLL AND FLL-LGA. DUE TO WX IN ATL, WE BLOCKED 2 HRS 15 MINS TO FLL. AS WE DEPARTED FLL FOR LGA, A NE [WIND] STARTED DUMPING SNOW AT LGA. WE HELD AT 3 PLACES BEFORE FINALLY DIVERTING TO BWI. WE BLOCKED 4 HRS 42 MINS FOR A TOTAL OF 6 HRS AND 57 MINS. THE GND PEOPLE AT BWI SAID THEY NEEDED THE GATE AND THAT WE WERE TO TAKE THE ACFT BACK TO FLL. DUE TO THE WX, THE CAPT AND I THOUGHT WE WERE OPERATING UNDER IRREGULAR OPS, WHICH MADE US LEGAL TO FLY OVER 8 HRS. IN ADDITION, THE COMPANY HADN'T UPDATED OUR ROTATION (TRIP), SO THE SYS DIDN'T (FLAG) CATCH THE PROB UNTIL WE WERE AIRBORNE ENRTE TO FLL. SOMEWHERE NEAR COLUMBIA, SC, WE WERE NOTIFIED TO DIVERT TO ATL BECAUSE WE WERE NO LONGER LEGAL TO FLY. MY MISTAKE WAS MY MISCONCEPTION THAT WE COULD FLY OVER 8 HRS DURING IRREGULAR OPS, EVEN ONCE WE HAD DEPARTED OUR SCHEDULED TRIP. I NOW KNOW THIS ISN'T THE CASE.

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.