Was going to ask if they ever had enough crew/ back up for such a huge fleet,
Newly recruited Iranian helicopter pilots during their initial training 
At present they are confined to performing ground runs as a result of an instructor shortage!
additionally are they still flying today?
Affirm.
With such a large fleet they can't afford not to!
We're talking about Iran and SAS is on-board .. but he hasn't mentioned Chooks once .. so .. this is for you SAS!
CH-47 Chinook of the Iranian Army Aviation unit