ERA11LA056 · Carlo Robert QUICKSILVER SPT 2S
Carlo Robert QUICKSILVER SPT 2S · Accident: aerodynamic stall/spin while maneuvering
From Lajas, PR to Lajas, PR
Event
- NTSB case
- ERA11LA056
- 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
Carlo Robert QUICKSILVER SPT 2S
- Aircraft type
- Carlo Robert QUICKSILVER SPT 2S
- 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
- N5593F
- Operator
- Carlo Robert
- Onboard fatalities
- Unknown
- Route
- From Lajas, PRTo Lajas, PR
- 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
- Aerodynamic stall/spin
- 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
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The non-certified pilot departed for a local flight and, during cruise flight, a witness reported seeing the airplane in a nose-low attitude spinning two times before impacting the ground in an open field. A postaccident inspection of the airframe revealed no evidence of preimpact failure or malfunction. The engine was started without a propeller and the engine and engine systems were found to operate normally. Results of postmortem toxicology testing were consistent with the regular use of a prescription antidepressant and relatively recent use of two different prescription medications that may be used for anxiety or as sleep aids. The investigation considered the possibility that the pilot may have been impaired by the recent use of an anti-anxiety medication or by the conditions for which the medications were prescribed; however, the role of any possible impairment in the accident could not be conclusively determined.
Probable cause
The pilot’s failure to maintain adequate airspeed, which resulted in an aerodynamic stall and entry into a spin.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA11LA056
- Event ID
- 20101113X04133
- Case number
- ERA11LA056
- 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: 7ab23885a84989410670495f904b42d3b577f79a7352d9c857b1fec1cb7a3507; retrieved 2026-09-13T21:07:49.188Z.