Maybe not required, but it's certainly standard practice. And we do catch errors on a regular basis.
Standard practice?
Mostly people don't know and just read back everything. If you didn't hear the frequency, ask. If you get it wrong, go back to the previous frequency and ask. Other than that, you are just contributing to congestion.
Mostly people don't know and just read back everything. If you didn't hear the frequency, ask. If you get it wrong, go back to the previous frequency and ask. Other than that, you are just contributing to congestion.
Why does everyone read it back except the too-cool-for-school owner-operator PPLs?
Usually when I catch an error, I didn't suspect I had it wrong until ATC corrected me. But each to his own.