Light Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 40; Flight Crew Total 4700; Flight Crew Type 175
Communication Breakdown; Confusion; Time Pressure
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Air Traffic Control Provided Assistance; Flight Crew Became Reoriented
Human Factors; Procedure
I filed the MINNE 5 Departure HISKU Transition. When I received the clearance from PDX clearance delivery frequency; I was assigned the Portland 1 Departure; then as filed. This is somewhat common at PDX so I didn't question the issuance of a different SID than filed. Everything was normal until we were cleared for takeoff on Runway 28R. The Tower told us to fly the MINNE 5 Departure and cleared us for takeoff and to not delay since there was an aircraft of short final. My first officer stated that we were issued the Portland 1 Departure and requested a radar vector on the departure; otherwise we would have to reset everything in the flight management system; re-brief the departure; and run additional checklists. The Tower Controller agreed and we began the takeoff roll with a clearance to fly runway heading. Very shortly after departure (about 500 feet AGL) we were recleared as follows: 'cleared direct PEGTY and the remainder of the MINNE 5 Departure. Climb and maintain 7000.' We were able to safely manage the FMS and get everything reset; but we were busy and somewhat distracted. At no point did I feel safety was compromised; but the workload increased significantly. In the future I would like to taxi clear of the runway and get things sorted out before taking flight. I feel the controller was caught off guard and then felt pressure to get us airborne due to the landing aircraft. This was the first flight of the day for our crew and we both had more than 24 hours rest. Fatigue was not a factor. We utilized good crew resource management to handle the event and had a thorough debrief afterward. The event will be documented within our company safety management system for analysis.
Corporate flight crew reported an increased workload on departure when they received a different SID clearance from Tower than what was received from Clearance Delivery.