Originally Posted by
zerozero
Nobody has mentioned PRIA (Pilot Records Improvement Act 1996).
If you're new to the airlines you need to understand that your training records follow you for the rest of your career. Why is that important? Every time you switch a job, you new employer will receive your training records from last employer.
Bust a checkride or need extra OE (operational experience) and it follows you for the rest of your career. It may not be a deal breaker but it's something to be aware of.
You say that like it's a bad thing. In the past bad pennies moved from airline to airline hiding their checkered past. In today's pilot market you have nothing to fear from one extra SIM session or similar. if you are competent you have nothing to fear from PRIA. Failing a checkride is a flag and should be something future employers know about.