B737-700
Flight Crew Last 90 Days 126
Communication Breakdown; Other / Unknown
ATC Issue All Types; Deviation - Speed All Types; Deviation / Discrepancy - Procedural FAR
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Human Factors; Procedure
We were descending into MDW on the ENDEE 3 Arrival. Approach had changed our runway three times; which required us to reload and brief. Our last clearance was direct ENDEE. Approach asked if we were going to cross ENDEE at 6000 FT. I responded that we were not cleared to descend via the ENDEE 3 Arrival. Approach said that we were given clearance. The Captain hurried down to make the restriction. At 8000 FT we were at 285 knots. We made the altitude restriction but we were above 250 knots. When changing or runway; it usually changes the transition as well. This requires to reload and brief the arrival and approach. During this time; both of our heads were down when they needed to be outside looking for traffic.
B737-700 First Officer reports receiving three runway changes while descending on the ENDEE3 Arrival. The crew is queried by ATC as to whether they are going to make the ENDEE crossing restriction; which they do not believe they were assigned. The 6;000 foot crossing restriction is made at well above 250 knots.