LATAM Boeing 767 descends 23,000 feet with oxygen masks deployed in midair emergency

A LATAM Boeing 767 was involved in a midair emergency, according to Simple Flying. The crew declared a transponder 7700 emergency.

The report states the crew executed an immediate descent of 23,000 feet, and that oxygen masks deployed during the event.

Simple Flying's summary states the jet was then returned to Lima.

The available account describes the event as a midair emergency and cites the 7700 declaration and the deployment of oxygen masks.

The available public information is limited to the Simple Flying report summary. It does not state the date of the event, the phase of flight, a possible cause, or any casualties or injuries.