Originally Posted by jawomba
I would like to know more about the three 707-300 (?) with the D-ABO* registration.
IIRC those three were the first delivered 707-320B. D-ABOS should have been a non-Adv and was quickly rereged D-ABOV, the others were T and X.
W, Y and Z apparently not taken, so the next delivery was D-ABUA (the first 330C) with subsequent deliveries receiving letters B/C...