CEN19LA188 · Cessna 560 Undesignat
Mueller Aero Cessna 560 Undesignat · Accident: turbulence encounter en route
From Harry Reid International Airport (LAS) to Sauk-Prairie Airport (91C)
Event
- NTSB case
- CEN19LA188
- 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
Cessna 560 Undesignat
- Aircraft type
- Cessna 560
- 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
- N318RW
- Operator
- Mueller Aero
- Onboard fatalities
- Unknown
- Route
- From Harry Reid International Airport (LAS), Las Vegas, NVTo Sauk-Prairie Airport (91C), Prairie du Sac, WI
- Aircraft age
- About 29 years (built 1990)
- 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
- En route · cruise
- 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
- Turbulence encounter
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
- Environmental issues › Conditions/weather/phenomena
- Personnel issues › Action/decision
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot had anticipated some turbulence along the route of flight, briefed his three passengers, and turned on the seat belt sign. At flight level (FL) 240, the flight encountered turbulence, and the pilot requested clearance to deviate from air traffic control (ATC), which ATC provided. Using on-board weather radar, the pilot determined that he needed a greater deviation and made several urgent requests for a clearance to deviate. ATC was not able to approve the deviation but instructed the pilot to descend from FL 240 to FL 200. During the descent, the airplane encountered the first of four 15- to 20-second severe turbulence events, with a 5- to 10-second interval between events. During the events, the pilot made several urgent requests for a deviation, but ATC was not able to approve the requests.
As far as the pilot was aware, all the passengers were in their seats with seat restraints on during the turbulent portion of the flight. One of the passengers was an elderly man, and one passenger was his caregiver. The caregiver reported that she had gotten out of her seat to assist the elderly man in adjusting his restraints more firmly. During the time she had gotten up to assist, she was thrown about the cabin during the turbulence. The pilot landed the airplane as soon as possible, and the caregiver was treated at a local hospital for bone fractures to her right arm.
Probable cause
The passenger’s decision to unbuckle her restraints during an in-flight turbulence event, resulting in serious injury.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN19LA188
- Event ID
- 20190628X80552
- Case number
- CEN19LA188
- 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: 536c0381cc5d018d937ef87c2c84f785f5902421fbb66a0f40b334868094c8a3; retrieved 2026-09-16T09:20:12.477Z.