NTSB CAROL · Event
Event CEN10LA090
Registry · N206AV
FAA Aircraft Registry record.
Make / Model
BEECH C-99
Year of manufacture
1983 · 27 years old at event
Engine
P&W CANADA PT6A-60A (1050 hp)
Seats / Engines
17 seats · 2 engines
Last airworthiness date
19830615
ADS-B equipped
Yes — Mode-S A1A861
Registrant of record
UAS TRANSERVICES INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The failure of the pilot to maintain adequate airspeed during the approach resulting in a stall. Contributing to the accident was the accumulation of structural icing during the flight.
Factual narrative
On January 6, 2010, at 0635 central standard time, a Beech C-99, N206AV, was substantially damaged during a hard landing at Kearney Municipal Airport (EAR), Kearney, Nebraska. The commercial pilot was not injured. The non-scheduled cargo flight, operated by Ameriflight, LLC., was conducted under the provisions of 14 Code of Federal Regulations Part 135 with an Instrument Flight Rules (IFR) flight plan. The cross-country flight originated at Eppley Airfield (OMA), Omaha, Nebraska, and was en route to EAR. According to the pilot, the airplane picked up light to moderate icing during the approach and he cycled the deicing boots once prior to the final approach fix. The pilot reported that he was established on the instrument landing system (ILS) approach to runway 36 at 120 knots indicated airspeed, configured with landing gear down, and 30 percent flaps, when he broke out of the weather about 250 feet above ground level. The pilot estimated that the approach brought the airplane 60 feet right of the runway centerline so he made a correction to align the airplane with the runway. The pilot continued that when the airplane was wings level and about 25 feet above the runway the left wing stalled and the airplane landed hard on the left main landing gear, bending the rear spar of the left wing. During the postflight inspection of the airplane there was 3/8 to 1/2 inch of ice observed on portions of the airplane’s wings, including the leading edge surfaces of the deicing boots. The pilot further reported that he did not recall the stall warning horn activating during the approach. Weather at EAR at 0635 was reported as 21 degrees Fahrenheit (F), dew point 19 degrees F, visibility ½ mile with freezing fog, ceiling 200 feet overcast, and winds from 130 degrees at 4 knots. The STALL WARN POWER circuit breaker was found popped during the postaccident inspection. The cause of the popped circuit breaker could not be determined. An examination of the remaining systems revealed no anomalies. The pilot reported that the airplane picked up light to moderate icing on approach to land and that he cycled the deicing boots once prior to the final approach fix. The pilot was established on the instrument landing system approach when he broke out of the weather about 250 feet above ground level. He estimated that the approach brought the airplane 60 feet right of the runway centerline so he made a correction to align the airplane with the runway. When the airplane returned to level flight and was about 25 feet above the runway, the left wing stalled and the airplane landed hard on the left main landing gear, bending the rear spar of the left wing. During the postaccident inspection of the airplane, ice was noted on the wings and deicing boots. The pilot did not recall the stall warning horn activating during the approach. The stall warning horn’s circuit breaker was found to be tripped during the postaccident inspection. The cause of the tripped circuit breaker could not be determined. An examination of the remaining systems revealed no anomalies. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-(general)-Not attained/maintained - C
- — Aircraft-Aircraft systems-(general)-(general)-Malfunction
- — Aircraft-Aircraft systems-Navigation system-Stall warning system-Not specified
- F Environmental issues-Conditions/weather/phenomena-Ceiling/visibility/precip-(general)-Effect on equipment - F
Verbatim from NTSB's published report. Source file
NTSB_2010_CEN10LA090.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (icing, stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- NASA NTRS 2019 · Contractor Report (CR)
An Evaluation of an Analytical Simulation of an Airplane with Tailplane Icing by Comparison to Flight Data
This report presents the assessment of an analytical tool developed as part of the NASA/FAA Tailplane Icing Program. The analytical tool is a specialized simulation program called TAILSM4 which was de…
- NASA NTRS 2019 · Technical Publication (TP)
NASA/FAA Tailplane Icing Program: Flight Test Report
This report presents results from research flights that explored the characteristics of an ice-contaminated tailplane using various simulated ice shapes attached to the leading edge of the horizontal …
- NASA NTRS 2019 · Other
[Tail Plane Icing]
The Aviation Safety Program initiated by NASA in 1997 has put greater emphasis in safety related research activities. Ice-contaminated-tailplane stall (ICTS) has been identified by the NASA Lewis Icin…
- Embry-Riddle Scholarly Commons 2019 · Journal article (IJAAA)
Airport Policing in Pakistan: Structure, Training, and Issue
Airports are strategically and economically important installations of any country. Airports are the gateway of any country and any incidents at these gateways may harm the very aspects of a country i…
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