>> THANK YOU FOR JOINING US ON THE SUNDAY I AM LINDSAY DAVIS. THE SUNDAY I AM LINDSAY DAVIS. WOULD BEGIN WITH THE DEVELOPING WOULD BEGIN WITH THE DEVELOPING STRIVE. STRIVE. THE WASHINGTON, D.C. THE WASHINGTON, D.C. METROPOLITAN AREA WAS ROCKED BY METROPOLITAN AREA WAS ROCKED BY A LOUD NOISE SONIC BOOM FROM DC A LOUD NOISE SONIC BOOM FROM DC NATIONAL GUARD FIGHTER JETS AND NATIONAL GUARD FIGHTER JETS AND COULD BE FELT ACROSS THE CAMERA COULD BE FELT ACROSS THE CAMERA NATION. NATION. THE F-16 WERE SCRABBLING TO THE F-16 WERE SCRABBLING TO INVESTIGATE AN AIRCRAFT NOT INVESTIGATE AN AIRCRAFT NOT RESPONDING AS IT FLEW OVER THE RESPONDING AS IT FLEW OVER THE DC AREA. DC AREA. THEY TOOK OFF FROM JOINT BASE, THEY TOOK OFF FROM JOINT BASE, MARYLAND AROUND THE SAME TIME A MARYLAND AROUND THE SAME TIME A SMALL CIVILIAN CRASHED INTO NOT SMALL CIVILIAN CRASHED INTO NOT MISS REGION OF SOUTHWEST MISS REGION OF SOUTHWEST VIRGINIA. VIRGINIA. ONE OFFICIAL TELLS ABC NEWS THEY VIRGINIA. ONE OFFICIAL TELLS ABC NEWS THE ONE OFFICIAL TELLS ABC NEWS THE NOW KNOW THAT PILOT OF THE PLANE ONE OFFICIAL TELLS ABC NEWS THE NOW KNOW THAT PILOT OF THE PLAN NOW KNOW THAT PILOT OF THE PLAN HAD PASSED OUT. HAD PASSED OUT. PRESIDENT BIDEN AND HIS WERE PRESIDENT BIDEN AND HIS WERE GOLFING AT THE TIME. GOLFING AT THE TIME. WE ARE TRACKING THE DEVELOPMENTS GOLFING AT THE TIME. WE ARE TRACKING THE DEVELOPMENT WE ARE TRACKING THE DEVELOPMENT AND LEADS US ALL TONIGHT FROM AND LEADS US ALL TONIGHT FROM WASHINGTON, DC. WASHINGTON, DC. >> A U.S. OFFICIAL TELLS ABC NEWS THAT TWO AVIATION INCIDENTS >> A U.S. OFFICIAL TELLS ABC NEWS THAT TWO AVIATION INCIDENT NEWS THAT TWO AVIATION INCIDENT JOLTING THE NATION'S JOLTING THE NATION'S R-UPPERCASE-LETTER CONNECTED. R-UPPERCASE-LETTER CONNECTED. ONE, A PIERCING SONIC BOOM HEARD R-UPPERCASE-LETTER CONNECTED. ONE, A PIERCING SONIC BOOM HEAR ONE, A PIERCING SONIC BOOM HEAR OVER A LARGE PORTION OF THE DC OVER A LARGE PORTION OF THE DC AREA AND BEYOND SURPRISING AREA AND BEYOND SURPRISING RESIDENTS. RESIDENTS. THE OTHER, THE CRASH OF A SMALL THE OTHER, THE CRASH OF A SMALL CIVILIAN JET AND RURAL SOUTHWEST THE OTHER, THE CRASH OF A SMALL CIVILIAN JET AND RURAL SOUTHWES CIVILIAN JET AND RURAL SOUTHWES VIRGINIA. VIRGINIA. TONIGHT A U.S. OFFICIAL TELLS TONIGHT A U.S. OFFICIAL TELLS ABC NEWS THAT TO DC AIR NATIONAL TONIGHT A U.S. OFFICIAL TELLS ABC NEWS THAT TO DC AIR NATIONA ABC NEWS THAT TO DC AIR NATIONA GUARD F-16S WERE SCRAMBLED TO GUARD F-16S WERE SCRAMBLED TO INVESTIGATE AND UNRESPONSIVE INVESTIGATE AND UNRESPONSIVE AIRCRAFT PLANE ESTRANGED AIRCRAFT PLANE ESTRANGED FLIGHTPATH OVER THE DC AREA AND FLIGHTPATH OVER THE DC AREA AND WAS NOT RESPONDED TO RADIO WAS NOT RESPONDED TO RADIO COMMUNICATIONS. COMMUNICATIONS. U.S. OFFICIAL SAYING THE PILOT U.S. OFFICIAL SAYING THE PILOT OF THE CIVILIAN AIRCRAFT WAS OF THE CIVILIAN AIRCRAFT WAS PASSED OUT AND THE AIRCRAFT PASSED OUT AND THE AIRCRAFT CRASHED IN A MOUNTAINOUS AREA CRASHED IN A MOUNTAINOUS AREA NEAR MONTEBELLO NEWT, VIRGINIA NEAR MONTEBELLO NEWT, VIRGINIA AROUND 3:30 P.M. LOCAL TIME. AROUND 3:30 P.M. LOCAL TIME. >> FOR PASSENGERS BECKY'S SOURCES TELL ABC NEWS THAT WHITE >> FOR PASSENGERS BECKY'S SOURCES TELL ABC NEWS THAT WHIT SOURCES TELL ABC NEWS THAT WHIT HOUSE AND THE CAPITAL BOTH PUT HOUSE AND THE CAPITAL BOTH PUT ON ALERT AS RADAR TRACK THE ON ALERT AS RADAR TRACK THE UNRESPONSIVE AIRCRAFT. UNRESPONSIVE AIRCRAFT. THIS SECRET SERVICE ALSO THIS SECRET SERVICE ALSO MONITORING. MONITORING. THE F-16S SCRAMBLING, OR THE F-16S SCRAMBLING, OR PRESIDENT BIDEN WAS GOLFING THIS THE F-16S SCRAMBLING, OR PRESIDENT BIDEN WAS GOLFING THI PRESIDENT BIDEN WAS GOLFING THI AFTERNOON JUST 10 MILES OUTSIDE AFTERNOON JUST 10 MILES OUTSIDE THE CAPITAL. THE CAPITAL. ACCORDING TO THE FAA, THE PLANE ACCORDING TO THE FAA, THE PLANE TOOK OFF FROM A MUNICIPAL TOOK OFF FROM A MUNICIPAL AIRPORT BOUND FOR MACARTHUR AIRPORT BOUND FOR MACARTHUR AIRPORT ON NEW YORK'S LONG AIRPORT ON NEW YORK'S LONG ISLAND. ISLAND. THE FLIGHTPATH SHOWING THE PLANE ISLAND. THE FLIGHTPATH SHOWING THE PLAN THE FLIGHTPATH SHOWING THE PLAN NEVER LANDED SHOWING THEIR NEVER LANDED SHOWING THEIR FLIGHT BACK AROUND HEADED SOUTH FLIGHT BACK AROUND HEADED SOUTH BEFORE CRASHING IN VIRGINIA. BEFORE CRASHING IN VIRGINIA. THEY TRAVELED AT SUPERSONIC THEY TRAVELED AT SUPERSONIC SPEEDS WITH THIS SONIC BOOM. SPEEDS WITH THIS SONIC BOOM. >> 'S HARROWING MOMENTS THERE. >> NORAD CONFIRMING TONIGHT THAT >> 'S HARROWING MOMENTS THERE. >> NORAD CONFIRMING TONIGHT THA >> NORAD CONFIRMING TONIGHT THA BOOM WAS CREATED BY JETS GOING BOOM WAS CREATED BY JETS GOING TOP SPEEDS TRYING TO CATCH UP TOP SPEEDS TRYING TO CATCH UP WITH THAT AIRCRAFT AND THEN WITH THAT AIRCRAFT AND THEN FLARES WE'RE ALSO USED TO TRY TO WITH THAT AIRCRAFT AND THEN FLARES WE'RE ALSO USED TO TRY T FLARES WE'RE ALSO USED TO TRY T GET THE PILOTS ATTENTION. GET THE PILOTS ATTENTION. TONIGHT THE FAA AND THE NTSB TONIGHT THE FAA AND THE NTSB BOTH INVESTIGATING THAT CRASH BOTH INVESTIGATING THAT CRASH NTC OFFICIALS SAYING THERE IS NO BOTH INVESTIGATING THAT CRASH NTC OFFICIALS SAYING THERE IS N NTC OFFICIALS SAYING THERE IS N THREAT TO THE PUBLIC. THREAT TO THE PUBLIC. >> WE WANT TO GET STRAIGHT TO ABC NEWS CONTRIBUTOR. ABC NEWS CONTRIBUTOR. ADDED SOMETHING LIKE THIS HAPPEN ADDED SOMETHING LIKE THIS HAPPEN ? ? >> IT APPEARS TO BE A CASE OF HYPOXIA. HYPOXIA. THAT IS WHEN ALARMS LOSS OF THAT IS WHEN ALARMS LOSS OF CONSCIOUSNESS OCCURS WHEN THERE CONSCIOUSNESS OCCURS WHEN THERE IS NO OXYGEN IN THE CAP AND IS NO OXYGEN IN THE CAP AND PURRED TRAGICALLY SEVERAL YEARS PURRED TRAGICALLY SEVERAL YEARS AGO THE PRESSURIZATION AND THE AGO THE PRESSURIZATION AND THE AIRCRAFT IS YOU KEEP ENOUGH AIRCRAFT IS YOU KEEP ENOUGH OXYGEN IN THE CABIN TO STAY OXYGEN IN THE CABIN TO STAY ALERT AND STAY AWAKE. ALERT AND STAY AWAKE. AND THIS CASE IT CAN HAPPEN AND THIS CASE IT CAN HAPPEN INSIDIOUSLY WERE YOU LOSE INSIDIOUSLY WERE YOU LOSE CONSCIOUSNESS, YOU BEGIN TO FEEL INSIDIOUSLY WERE YOU LOSE CONSCIOUSNESS, YOU BEGIN TO FEE CONSCIOUSNESS, YOU BEGIN TO FEE TINGLING, YOU GET A SENSE OF TINGLING, YOU GET A SENSE OF EUPHORIA IN IT VERY SLOWLY EUPHORIA IN IT VERY SLOWLY OVERCOMES THE PEOPLE IN THE OVERCOMES THE PEOPLE IN THE CABIN. CABIN. IT SEEMS TO BE WHEN THE F-16 IT SEEMS TO BE WHEN THE F-16 JOINT UP, THE F-16 WAS THE PILOT IT SEEMS TO BE WHEN THE F-16 JOINT UP, THE F-16 WAS THE PILO JOINT UP, THE F-16 WAS THE PILO WAS PASSED