WPR18LA132 · Cosmos PHASE III
Cosmos PHASE III · Accident: loss of control in flight during initial climb
From Fernandina Beach Municipal Airport (FHB) to Fernandina Beach Municipal Airport (FHB)
Event
- NTSB case
- WPR18LA132
- 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
- 0 · 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
Cosmos PHASE III
- Aircraft type
- Cosmos PHASE
- Category
- Weight-Shift
- 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
- N6466
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Fernandina Beach Municipal Airport (FHB), Fernandina Beach, FLTo Fernandina Beach Municipal Airport (FHB), Fernandina Beach, FL
- Aircraft age
- About 15 years (built 2003)
- 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
- Initial climb
- 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
- Loss of control in flight
- 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
- Personnel issues › Psychological
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The flight instructor reported that, during the initial climb for the instructional flight in the weight-shift-control trike, the student pilot was manipulating the controls. About 700 ft above ground level, the aircraft suddenly entered a "hard" left bank. The flight instructor took control of the aircraft but was unable to recover control before the aircraft impacted terrain in a nose-down attitude, which resulted in substantial damage. The flight instructor did not recall if there was a mechanical malfunction or failure but reported that the student pilot was known to freeze on the controls and the student could have been fighting him.
It is likely that the flight instructor was not adequately monitoring the student pilot when the aircraft entered the excessive turn and that, due to the low altitude, he did not have sufficient time to recover control before the collision.
Probable cause
The student pilot's failure to maintain aircraft control and the flight instructor’s failure to adequately monitor the student pilot before aircraft control was lost at a low altitude.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR18LA132
- Event ID
- 20180502X12325
- Case number
- WPR18LA132
- 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. 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: 67dffa373c53bc836c81d28c1c9ed782e793abeefa661f34a0da640859b636b5; retrieved 2026-09-16T06:59:34.120Z.