ERA11LA330 · Beech C90
LP Aviation Beech C90 · Accident: turbulence encounter en route
From Charleston International Airport (CHS) to Newark Heath Airport (VTA)
Event
- NTSB case
- ERA11LA330
- 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
- Instrument Meteorological Cond
Beech C90
- Aircraft type
- Beechcraft 90
- 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
- N291CC
- Operator
- LP Aviation
- Onboard fatalities
- Unknown
- Route
- From Charleston International Airport (CHS), Charleston, SCTo Newark Heath Airport (VTA), Newark, OH
- 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
- 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
- Substantial
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 obtained weather information via the internet before the flight. The information he obtained included advisories for convective activity and scattered thunderstorms along the intended northwesterly route of flight. The pilot reported that the takeoff and the climb to cruise altitude were "normal," with intermittent periods of light turbulence. About 100 miles northwest of the departure airport, the pilot observed weather ahead on the airplane's on-board weather radar and requested from the en route air traffic controller a 45-degree westerly course deviation. A course deviation was granted, but because of a potential conflict with a climbing airplane, the pilot was instructed to turn no more than 30 degrees west of his previously established heading. After turning the airplane 30 degrees, the pilot determined that he would need an additional 30- to 45-degree course deviation to avoid weather ahead. The pilot made at least two additional attempts to contact the controller, but received no response. Postaccident review of air traffic control recordings indicates that the pilot’s transmissions were likely blocked, as one of them was made while another pilot was transmitting and the other was made while the controller was speaking to yet another pilot. The pilot made an additional course deviation, and the airplane encountered moderate to severe turbulence lasting about 2 minutes; however, the airplane performed normally after the turbulence encounter and the pilot continued to the destination airport, landing without further incident. Subsequent examination of the airplane revealed substantial damage to the wing spar, likely due to the turbulence encounter.
The airplane was equipped with a next generation radar receiver, weather radar, and a lightning strike indicator. The pilot was thus likely aware of areas of significant weather ahead of him, as well as the less significant weather to the northeast and south well before the encounter, and he was definitely aware of the clear weather through which he had just flown. Nonetheless, the pilot continued to fly toward his destination, and toward the significant weather, which resulted in the airplane's encounter with the turbulence.
Probable cause
The pilot's in-flight decision to continue toward his destination, through known significant weather, when safer alternatives were available.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA11LA330
- Event ID
- 20110609X11141
- Case number
- ERA11LA330
- 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: d9a45715303feb902738bc1facb30b245335761b2fdd9577eef468f319b46441; retrieved 2026-09-15T16:15:44.934Z.