The FAA is currently investigating a hair-raising incident involving a Southwest Airlines flight that nearly plunged into the ocean off the coast of Hawaii. This alarming event, which took place on April 11, was brought to light through a memo sent to pilots.

The memo disclosed that a “newer” first officer on the flight mistakenly pushed forward the control column, causing the Boeing 737 Max 8 jet to plummet at an alarming rate of over 4,000 feet per minute. The aircraft came perilously close to disaster, dipping to within 400 feet of the ocean’s surface. Fortunately, there were no injuries reported on the flight.

Flight 2786, en route to Lihue, encountered adverse weather conditions that thwarted a safe landing on Kauai. Southwest Airlines responded to the incident with a statement to CNN, asserting, “Nothing is more important to Southwest than Safety. Through our robust Safety Management System, the event was addressed appropriately as we always strive for continuous improvement.”

In a separate but equally concerning development, the FAA is also probing an unusual rolling motion experienced on a Southwest Airlines Boeing 737 MAX. This incident, which occurred on May 25 during a flight from Phoenix to Oakland, California, is believed to have been triggered by a damaged backup power-control unit.

The FAA is collaborating with Boeing and the National Transportation Safety Board to investigate this alarming event, which saw the plane enter a “Dutch roll,” a term describing a combination of a yawing motion and a rocking motion from wingtip to wingtip, reminiscent of a Dutch ice skater’s movements.