The February update is up! Here is an overview of the changes:

• 1 new plane was delivered, an A321neo.
• 3 planes flew their first revenue flight for DL, 2 new A321neos and 1 used B739ER
• DL's 10-K was released and included updated order timelines. I've updated the spreadsheet to reflect the new numbers.
• Also, that 10-K lists 60 A320s in service for DL while previous 10-Qs and 10-Ks list 61. That implies one has been retired. Upon researching the A320s, two have been parked at BHM since August, 3209 (N309US) and 3232 (N332NW). I'm assuming 3209 is the retired one, simply because it's older, but will monitor.
• Speaking of retirement, 1 B752 was retired.
• 2 OO CR2s flew revenue flights for DL. But they have both since gone to ROW, so this truly should be the last we hear of them.

Details are in the spreadsheet. The link is the same as before and the same as in the Wiki, but here it is for completeness:

https://drive.google.com/file/d/1ifw...ew?usp=sharing

Enjoy!