Large Transport; Low Wing; 2 Turbojet Eng
Communication Breakdown; Confusion
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Procedure; Airspace Structure; Human Factors
After takeoff; we thought we were cleared to PAUKI. I read back what I thought was PAUKI. We had been cleared to FLUKY and were eventually given vectors to FLUKY. Make a greater effort to understand the clearance when issued by ATC. Though; I'm still not sure if we made the mistake or ATC did.
After departing BWI; an air carrier crew was cleared to FLUKY Intersection on the TERPZ TWO RNAV departure; but understood and read back clearance to PAUKI Intersection; which is 41 miles further southwest.