Seen it before, it's usually a local CAA thing rather than airline or agency. Concur with ICING AOA, I have seen the ATR thing in India, you can get it sometimes on the F100 or F70 and Airbus too. It happens with engineers also and can even work from the other side - local CAAs refusing to put types on your license at the request of the airline so it's difficult to leave, for example. One Thai Captain friend had "B737-400" only on his license rather than the normal range (don't mind including the -NGs!), it caused him huge problems. It's more common than you think outside of JAA/EASA-land.