Originally Posted by
ssullivan
CO's "old" 737s are the 733s, not the 735s. Most of the 735s are less than 15 years old, and some are barely 10 years old. Most of the 733s were delivered pre-1990, with some over 20 years old.
Correct. If you look closely at the NY Times graphic, you will see that there are 48 "older" aircraft listed for CO, which is the number of 733's CO currently operates.
That represents 13% of the fleet. AA's Mad Dogs represent 45% of the AA fleet.
The newest 733 was delivered in 1995 (with the majority delivered before 1987). The oldest 735 was delivered in 1994, and the most recent one delivered in 1998 (N14668).