Transcript atc tape, translated by me. Relevant parts were in dutch.
TWR: KLM1369
KLM: 1369 go
TWR: Did you realize it sir?
KLM: eh...no
TWR: 1369 can you give me a phone call?
KLM: eh.. allright.
TWR: At your destination, or enroute?
KLM: eh.. destination.
TWR: okay we will arrange a discrete frequency, for the time
contact 119.05 (departure controler)
Later on the discrete frequency:
KLM: 1369 Hey
TWR: Yes 1369 good evening, ehh... did you reflect on the situation?
KLM: eh.. yes of course....eeh...I cannot imagine what it is.
TWR: eeh.. we let you go.... because you already had a high speed, but
you.... do you realize you departed from the taxitrack?
KLM: No I did not.....ok thank you
KLM: ...I understand...eh..I will report it also... ehm..well thank you for
passing it on.