N804ST — 1980 Cessna 501
Active registrationChecked against FAA & NTSB records · as of Jul 24, 2026
N804ST appears in 1 NTSB accident record (most recent 2016, minor injuries). Registration and accident data compiled from public FAA and NTSB records as of Jul 24, 2026.
Aircraft record
Accident & incident history
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.
Registration timeline
Ownership and registration events for this airframe (the 1980 Cessna 501).
- Jun 22, 2017registered — Ial Corp
Frequently asked
- Has N804ST been in an accident?
- Yes. N804ST appears in 1 NTSB accident record, the most recent in 2016.
- What kind of aircraft is N804ST?
- N804ST is a 1980 Cessna 501 (fixed wing multi-engine), serial number 501-0146.
- Who is N804ST registered to?
- N804ST is registered to Ial Corp of Lewes, DE. Registration status: active.
The full N804ST report
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- Complete registration & deregistration timeline, print-ready
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