We have 29 MD
-90's in service and 24/25 DC-9-50's in service.
Looks like since Oct 1, when 27 were in service
9852 last flight was in October
9869 has not flown at all this month.
9886 may of had the last flight today, isn't scheduled for any flights the next few days, but not 100% on this, came in from SAV
about 2:30 today (EST) and is done.
Looks like 9229 (MD-90) has joined the fleet actively.