So there I am, looking for a flight from LAX to SLC. I've recently purchased FSX, so I'm skeptical about downloading anything made for FS2004. Therefore, I needed a flight that used aircraft included in FSX. None popped up that I could use except for "CRJ". Wondering speciffically what type, I clicked on the link. It takes me to the glossary of abbreviations, and under "CRJ", it just says, "Canadair Rejoinal Jet". Which is this and what should I fly and report in my PIREP as to not "substitute aircraft"?

CRJ is the CRJ-100/200.
CR7 is the CRJ-700.
CR9 is the CRJ-900.

LAX-SLC is operated by 757-200, MD-90s and 1 CRJ-200.
The CRJ flight is Delta 3859 operated by SkyWest with the CRJ-200.

Got it. Thanks.

Please always, always, ALWAYS look at the Aircraft Codes section on the Flights page.