WPR20CA243 · Quest KODIAC 100
Cly Aviation Quest KODIAC 100 · Accident: landing gear not configured
From King County International Airport - Boeing Field (KBFI) to an unrecorded destination
Event
- NTSB case
- WPR20CA243
- 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
- Event fatalities
- Unknown
- 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
Quest KODIAC 100
- Aircraft type
- Quest KODIAC 100
- 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
- N856TC
- Operator
- Cly Aviation
- Onboard fatalities
- Unknown
- Route
- From King County International Airport - Boeing Field (KBFI), Seattle, WATo not recorded
- Aircraft age
- About 10 years (built 2010)
- 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
- Landing
- 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
- Landing gear not configured
- 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 systems
- Personnel issues › Action/decision
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot of the amphibious float plane departed from a lake to a local airfield to refuel. After refueling, he departed the airport but neglected to retract the landing gear and he flew back to the same lake. During the touchdown, the float plane nosed over, and the engine truss was substantially damaged. The pilot added that he would modify his takeoff and prelanding checklist procedure to better verify the configuration of the landing gear. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe and engine that would have precluded normal operation.
Probable cause
The pilot’s failure to retract the landing gear during a water landing, which resulted in a nose over. Contributing to the accident was the pilot’s failure to properly use a prelanding checklist.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR20CA243
- Event ID
- 20200728X14620
- Case number
- WPR20CA243
- 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, cause areas. 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: 1e6135e42ecacad587e58959d107552a441f2f5bd7be3e73640681b6aec51410; retrieved 2026-09-16T12:17:56.657Z.