Nickname for the Air Traffic Code Given to Planes

This page is the CodyCross answer for the clue below from The 90s, Group 1130, Puzzle 2 (Chain Wallets).

Question is: Nickname for the Air Traffic Code Given to Planes

and the answer is: SQUAWK

Word Meaning:

SQUAWK — A shrill noise, especially made by a voice or bird. If made by a bird, it typically signals discomfort or anger; a yell, scream, or call.

Definitions from Wiktionary.