SEA08LA058 · Corsario MK-5
Corsario MK-5 · Accident: collision with terrain/object (non-CFIT) while maneuvering
From Corona Municipal Airport (KAJO) to an unrecorded destination
Event
- NTSB case
- SEA08LA058
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 1 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Corsario MK-5
- Aircraft type
- Corsario MK-5
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N9639H
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Corona Municipal Airport (KAJO), Corona, CATo not recorded
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Maneuvering
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Collision with terrain/object (non-CFIT)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The experimental amateur built amphibian airplane impacted hilly terrain within a sparsely populated area during daytime visual meteorological conditions. The wreckage site was near a lake and on scene documentation by the Federal Aviation Administration inspector indicated that the airplane was maneuvering at low level within sight of the lake shore when the left wing contacted terrain, followed by the fuselage. No radio transmissions were received by the pilot nor were there any witnesses to the accident sequence. A post accident examination of the airframe and engine revealed no anomalies that would have suggested mechanical malfunction or failure. After the initial on-scene examinations by the Federal Aviation Administration inspector, the wreckage recovery was delayed due to weather. Once access to the site was obtained, the recovery crew indicated that the majority of the wreckage had been removed and its disposition is unknown.
Probable cause
The pilot's failure to maintain clearance from terrain while maneuvering.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA08LA058
- Event ID
- 20080117X00068
- Case number
- SEA08LA058
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 60923a4e650ae31b1e54f51f3eb26594bb4c2d10347d7e8588620fc6a7223204; retrieved 2026-09-13T18:53:18.733Z.