Accident: Cessna 501
May 24, 2016 · Texarkana, AR
NTSB numberCEN16LA197Event id20160527X13034
- 0
- Fatalities
- 0
- Serious injuries
- 3
- Minor injuries
- 1
- Uninjured
Probable cause
The pilot's failure to use supplemental oxygen as required during high-altitude flight, which resulted in his loss of consciousness following a loss of cabin pressurization. Contributing to the accident was the separation of the air conditioning system's primary pressurization duct and the subsequent failure of the aft pressure bulkhead check valve flapper due to progressive weakening from age.
Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.
Aircraft involved
- Aircraft
- Cessna 501
- Registration
- N804ST
- Year built
- 1980
- Category
- Airplane
- Damage
- Substantial
- Operating rules
- Part 91: general aviation
- Defining event
- Enroute Pressure/environ sys malf/fail
Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.
Nearest airports
Airports with a Voydar profile closest to the recorded position. Proximity only.
- Texarkana Regional Airport (Webb Field) (TXK)2 nm (5 km) east
This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.