NTSB Incident Report on the Beech 23 at Loris, SC (ATL84FA090)

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NTSB Identification: ATL84FA090

For details, refer to NTSB microfiche number 24501A

Accident occurred FEB-01-84 at LORIS, SC
Aircraft: BEECH 23, registration: N6141N
Injuries: 4 Fatal.

THE ESTIMATED TIME OF TAKEOFF WAS ABOUT 1930 EST. THE ROUTE OF FLT BEFORE 2000 EST WASNOT KNOWN. AT APRX 2005, THE PLT REPORTED THAT HE WAS UNSURE OF HIS POSITION. SHORTLYAFTER THAT, THE ACFT WAS IDENTIFIED OVER A MILITARY FIRING RANGE. THE PLT WAS VECTOREDFROM THE RANGE TOWARD OCEAN ISLE, NC. AT 2052, THE PLT ACKNOWLEDGED INSTRUCTIONS TO CHANGETO MYRTLE BEACH APCH CONTROL FREQ, BUT HE DID NOT CONTACT APCH CONTROL. SUBSEQUENTLY, AFEMALE PASSENGER RADIOED THAT THE PLT WAS UNCONSCIOUS & THAT THEY WERE LOST. ATC &THE PLT OF ANOTHER ACFT TRIED TO ASSIST, BUT THE PASSENGER WAS EXTREMELY EXCITED &COMMUNICATION WITH HER WAS VERY DIFFICULT. THE PLT OF THE OTHER ACFT THOUGHT HE HEARD AMALE VOICE IN THE BACKGROUND STATE “GIVE ME SOME AIR.” SUBSEQUENTLY, THE ACFTCRASHED (AT NIGHT) WHILE IN A STEEP NOSE DOWN. SLIGHTLY INVERTED, R WING LOW ATTITUDE.TOXICOLOGICAL TESTS SHOWED THAT THE PLT & 3 PASSENGERS HAD THE FOLLOWING CARBONMONOXIDE LEVELS: 24%, 22%, 35% & 44%. THE EXACT POSITION OF A CARBON MONOXIDE LEAK WASNOT FOUND.

Probable Cause

Exhaust system..Leak
Incapacitation(carbon monoxide)..Pilot in command

Contributing Factors

Light condition..Dark night
Physical impairment(carbon monoxide)..Pilot in command

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