ERA20LA109 · Rockwell 112 B
Rockwell 112 B · Accident: loss of control on ground during landing
From Bowman Field (LOU) to Knoxville Downtown Island Airport (DKX)
Event
- NTSB case
- ERA20LA109
- 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
Rockwell 112 B
- Aircraft type
- Rockwell 112
- 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
- N377SB
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Bowman Field (LOU), Louisville, KYTo Knoxville Downtown Island Airport (DKX), Knoxville, TN
- Aircraft age
- About 43 years (built 1977)
- 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 · landing roll
- 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 on ground
- 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
Approximate · Coordinates from the NTSB case API, not marked as estimated; no uncertainty radius is established.
NTSB narrative
The pilot flew a normal approach, landed about 1/3 down the runway, and applied the brakes equally a few seconds after touchdown. About 1 or 2 seconds after the airplane began to slow, he felt, "a very aggressive turn to the left," which he described as if the airplane had suddenly encountered a 20+ knot crosswind. He applied right rudder input, but the airplane continued left, departed the runway onto grass, and impacted a ditch coming to rest with the nose landing gear collapsed. The left main landing gear tire was found deflated and flat spotted. Postaccident examination of the airplane's brake system revealed no evidence of preimpact failure or malfunction. The reason for the flat-spotted tire could not be determined.
Probable cause
A loss of directional control during landing following deflation of a flat-spotted tire for reasons that could not be determined based on available evidence.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA20LA109
- Event ID
- 20200221X22211
- Case number
- ERA20LA109
- 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, coordinates. 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: 782c1a163a97d6ded54c93f063a880ad628b463b1e2729d52246e84f9f8239b8; retrieved 2026-09-16T11:09:19.557Z.