B757 Undifferentiated or Other Model
Flight Crew Last 90 Days 100; Flight Crew Total 23000; Flight Crew Type 6000
Human-Machine Interface
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Human Factors; Procedure
Flight plan was filed direct TAY J75 CAE J51 FAK ... Our clearance said no revisions but gave us the BAYPO5 departure. When we put the BAYPO5 into the FMC and we had two transition choices; the AMG transition or the DUNKN transition. Since we were filed direct TAY and TAY was not a transition option; we put TAY in after the BAYPO Intersection to couple our route up and get rid of the route discontinuity. After takeoff and after going past BAYPO Intersection; Center asked if we were on an assigned heading. We said no we were on the BAYPO5 SID and now heading to TAY. He said after BAYPO; we were supposed to be going to ECAKE WILON SPRING CAMJO CARRD DUNKN. We pulled up the SID again and verified that there was no TAY transition. We looked at the clearance again and in the remarks section; it said the BAYPO5 departure and after that; it said the DUNKN transition. We missed the DUNKN part. The DUNKN transition totally bypasses TAY which is on our route and therefore this should have qualified for a reroute and yet our clearance said no revised segment. If you are not going to somewhere listed on your flight plan; it's a reroute plain and simple. In summary; we would have caught our mistake if it said revised segment. In the future; dispatch should be filing us to a SID transition if there is a remote chance that we could get a SID. Not to a VOR that is not connected to the SID.
On climbout with a BAYPO5 departure direct TAY filing. ATC queried us as to our heading. We were currently headed direct TAY. They then cleared us direct TAY. Upon questioning ATC as to why; they said there was confusion as to where exactly we were headed. No conflict occurred.
B757 flight crew reports receiving a PDC from TPA for the BAYPO5 but does not note the transition. ATC questions the routing.