B737 Undifferentiated or Other Model
Confusion; Distraction; Workload
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
General None Reported / Taken
Chart Or Publication; Weather; Human Factors
While climbing out on the O'Hare 7 Departure 30 south of ORD and deviating for thunderstorms; we were handed off from Chicago Departure to the Center Controller. Center Controller asked us if we were given normal speed; to which we replied we thought so. The departure states maintain 250 KTS until advised; and our airspeed was at 285 KTS. He said he was just checking to make sure the Departure Controller gave us normal speed. On the ground we were dealing with 3 reroutes; maintenance problem; fuel; and thunderstorm issues. Prior to the departure the O'Hare 7 was briefed and the altitude and speed restrictions were briefed. We were extremely busy and cannot definitively recall if the airspeed limitation of 250 KTS was released.
ORD Departure Control asked a B737 if the O'HARE 7 250 KT restriction had been removed and the First Officer responded 'We thought so;' but because of weather and a busy departure he could not actually remember.