caution light

When a malfunction occurs on a 737, the pilot will first see a master caution light on the glare shield at the top of the instrument panel and beside it a specific light will illuminate, labeled “fuel” or “engine” or “flight controls” or some other system.

Smith had surged into the lead as the flagman threw the white to signify one lap to go, but it was at the exact moment an 18-truck crash behind him triggered the yellow caution light.

U.S. markets tumbled Wednesday after the Federal Reserve chairman flashed a big caution light informing Wall Street that the road to economic recovery from the coronavirus pandemic would be prolonged and bumpy.

The field was nearing the start-finish line but the caution light came on before the leader took the white flag.

The field was nearing the start-finish line but the caution light came on before the leader took the white flag.