Why the Alt Alert™?


Prevent Slow Onset Hypoxia with AltAlert™

Developed under exclusive license from NASA, Aviation Technology Inc. created the world’s first and only personal cabin pressure monitor: AltAlert™AltAlert™ brings a new level of protection and peace of mind to pilots, passengers and crew. The portable and durable AltAlert™ is adept at detecting cabin pressure problems, such as slow cabin pressure leaks. Affordable and easy-to-use, AltAlert™ is ideal for preventing slow onset hypoxia, which has been identified as the culprit in numerous fatal plane crashes. AltAlert™ is about the size of a cell phone, and can be either clipped to the visor or mounted on a flat surface. It works by acutely monitoring aircraft cabin altitude and sounding an alarm when aircraft cabin pressure is compromised. It’s a brilliant piece of aviation engineering that provides peace of mind at any altitude.


The Payne Stewart Tragedy - 


On October 25, 1999, a month after the American team rallied to win the 1999 Ryder Cup in Brookline, Massachusetts, and four months after his U.S. Open victory at Pinehurst No. 2, Stewart was killed in the depressurization of a Learjet flying from Orlando, Florida, to Dallas, Texas. He was headed for the year-ending tournament, The Tour Championship, held at Champions Golf Club in Houston that year. The last communication received from the pilots was at 9:27 AM EDT, and the plane made a right turn at 9:30 AM EDT that was probably the result of human input.

At 9:33 AM EDT the pilots did not respond to a call to change radio frequencies, and there was no further contact from the plane. The plane was, apparently, still on autopilot and angled off-course, as observed by several U.S. Air Force (and Air National Guard) F-16 fighter aircraft as it continued its flight over the southern and midwestern United States. The military pilots observed frost or condensation on the windshield (consistent with loss of cabin pressure) which obscured the cockpit, and no motion was visible through the small patch of windshield that was clear.

National Transportation Safety Board investigators later concluded that the plane suffered a loss of cabin pressure and that all on board died of hypoxia as the plane passed to the West of Gainesville, Florida. A delay of only a few seconds in donning oxygen masks, coupled with cognitive and motor skill impairment, could have been enough to result in the pilots' incapacitation.

According to a USAF timeline, a series of military planes provided an emergency escort to the stricken Lear, beginning with an F-16 from Eglin Air Force Base, about an hour and twenty minutes (9:33 EDT to 9:52 CDT – see NTSB report on the crash) after ground controllers lost contact. The plane continued flying until it ran out of fuel and crashed into a field near Minot, South Dakota, a town ten miles (16 km) west of Aberdeen, after an uncontrolled descent. The five other people aboard the plane included Stewart's agents Robert Fraley and Van Ardan, and pilots Michael Kling and Stephanie Bellegarrigue, along with Bruce Borland, a highly regarded golf course architect with the Jack Nicklaus design company.