The auto pressurization light came on during three recent flights involving the same plane, the National Transportation Safety Board said. Some plane components are being sent to an NTSB lab.

Some plane components are being sent to an NTSB lab. ... the plane's auto pressurization fail light came on, ... Diagram of a Boeing 737-9 mid-cabin door plug and components ...

Learn about the law of reflection through ray diagrams and plane mirrors, and the key facts of refraction with a practical experiment using ray tracing.

The auto pressurization light came on during three recent flights involving the same plane, the National Transportation Safety Board said. Some plane components are being sent to a NTSB lab.