M9 and M9A Procurement & Acceptance

[BenTheMiner]

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

[BenTheMiner]

M9 9013-9014 redelivered

[Jake Rothman]

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

[Jake Rothman]

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

[BenTheMiner]

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

[BenTheMiner]

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

[Jake Rothman]

Nope, found out 2nd hand myself

[Jake Rothman]

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.

[BenTheMiner]

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

[MBTAVideoClips]

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