M9 and M9A Procurement & Acceptance

M9 9199-9200 was seen on the move. This means that it is on LIRR property, but it is unknown if it entered service, was testing, or doing something else. Most likely testing. Was seen with 9051-9052 and 9147-9148.
https://www.youtube.com/watch?v=_vaF3ZbpLB8

M9 9013-9014 redelivered

9199-9200 entered service on 6217 to Grand Central this morning, west leading motor of a 12 car set. Happy New Year !

9173-9174 finally in service this morning after a good year or so of testing and getting stuff worked out, currently in an 8 car set. All 9170s are completed at this time. 16 cars remain

M9 9195-9196 delivered by CSX to LIRR Fresh Pond Yard

^ Jake was this your info? I heard it second hand

Nope, found out 2nd hand myself

9183-9184 in service following a successful testing period over the past month or two. Leading west motor of a 10 car set. 14 cars remain.

M9 9197-9198 delivered to Fresh Pond Yard from Kawasaki Yonkers

I'm suprised the testing/accepting/etc is still going on! How many remain?