NTSB CAROL · Event
Event ERA17LA078
Registry · N683AM
FAA Aircraft Registry record.
Make / Model
PATRIOT AIRCRAFT LLC CX1900A
Year of manufacture
2025
Engine
AMA/EXPR UNKNOWN ENG
Seats / Engines
2 seats · 1 engine
ADS-B equipped
Yes — Mode-S A90E68
Registrant of record
ALPHA MIKE LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's exceedance of the airplane's critical angle of attack while attempting a short-field takeoff, which resulted in an aerodynamic stall.
Factual narrative
On January 5, 2017, about 1700 eastern standard time, an Aircraft MFG & Development Co, CH 2000, N683AM, was substantially damaged when it collided with trees, during the initial climb after takeoff from Cobb County International Airport (RYY), Atlanta, Georgia. The private pilot was seriously injured. The airplane was operated by the private pilot as a personal flight conducted under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no flight plan was filed for the planned local flight.The pilot reported that he had planned to perform some touch-and-go landings at RYY. During initial takeoff on runway 27, he applied full power and initiated a climb at the appropriate airspeed. Shortly thereafter, the airplane experienced a loss of engine power and climb performance. The left wing and nose dropped, but no stall warning horn sounded. The pilot leveled the wings and configured the airplane quickly for landing, before colliding with trees. The pilot further reported that he had acquired his private pilot license in 2009, but had not flown between 2010 and 2015. He also had not completed a current flight review. The pilot reported a total flight experience of 143.3 hours; of which, 59 hours were in the same make and model as the accident airplane. He had flown 21.3 hours during the 90-day period preceding the accident. According to a Federal Aviation Administration (FAA) inspector, air traffic control personnel observed the airplane about 200 feet above ground level as it was approximately 900 feet from the beginning of runway 27. The airplane then drifted left, descended, and impacted trees. The inspector further stated that the airplane came to rest in a wooded area south of runway 27, about 1,400 feet from the beginning of the runway. The inspector examined the wreckage at the accident site and noted that during the impact, the airplane suffered damage to both wings and the fuselage. The inspector observed the flaps in the full-extended position. He also found an airplane operating handbook in the cockpit and observed that it was open to a page describing short field takeoffs and landings. He added that due to impact damage, some fuel had leaked from the airplane. After the wreckage was recovered to a salvage facility, a test-run of the engine on the airframe was conducted under the supervision of an FAA inspector. The engine started without hesitation and ran for several minutes at different power settings, including full power. The recorded wind at RYY, at 1647, was from 300 degrees at 3 knots. The private pilot attempted a short-field takeoff procedure, and air traffic control tower personnel observed the airplane about 200 ft above ground level about 900 ft from the beginning of the runway. The airplane then drifted left, descended, and impacted trees. Although the pilot subsequently reported a loss of engine power and climb performance, a test run of the engine following the accident revealed no anomalies. The pilot had an approximate 5-year gap in flying experience and had not completed a flight review, although he reported about 21 hours of flight experience in the 90 days preceding the accident. He reported a total flight experience of 143.3 hours, of which 59 hours were in the accident airplane make and model. It is likely that the pilot exceeded the airplane's critical angle of attack while attempting a short-field takeoff, which resulted in an aerodynamic stall at an altitude too low to recover. 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 Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained - C
Verbatim from NTSB's published report. Source file
NTSB_2017_ERA17LA078.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 (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.
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- 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 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- 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…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
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