NTSB CAROL · Event
Event GAA16CA206
Registry · N501TT
FAA Aircraft Registry record.
Make / Model
BOEING A75N1(PT17)
Year of manufacture
1940 · 76 years old at event
Engine
CONT MOTOR W670 SERIES (250 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19930614
ADS-B equipped
Yes — Mode-S A63F62
Registrant of record
CAPITAL AVIATION GROUP LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion and substantial damage to the lower left wing spar.
Factual narrative
According to the pilot of the tailwheel-equipped biplane, during approach, the tower cleared him to land on the short runway which he refused because he felt rushed by inbound traffic. He reported that the tower acknowledged his refusal, and cleared him to land on the long runway which was runway 17R. The pilot reported that he landed on runway 17R with a quartering tail wind. However, during the pilot's approach, the wind that was reported by ATC to the pilot was 230 degrees true at 6 knots. He recalled that the airplane exited the right side of the runway, then ground looped to the right, and came to a stop nose down in a ditch and resting on the bottom left wing. The airplane sustained substantial damage to the lower left wing spar. The meteorological aerodrome report (METAR) reported the wind as calm, 5 minutes before the accident. One hour before the accident, the METAR reported the wind as variable at 3 knots. One hour after the accident the METAR reported the wind as variable at 4 knots. The pilot reported that there were no mechanical failures or anomalies with the airplane prior to or during the flight that would have prevented normal flight operation. According to the pilot of the tailwheel-equipped biplane, during approach, the tower cleared him to land on the short runway which he refused because he felt rushed by inbound traffic. He reported that the tower acknowledged his refusal, and cleared him to land on the long runway which was runway 17R. The pilot reported that he landed on runway 17R with a quartering tail wind. However, during the pilot's approach, the wind that was reported by ATC to the pilot was 230 degrees true at 6 knots. He recalled that the airplane exited the right side of the runway, then ground looped to the right, and came to a stop nose down in a ditch and resting on the bottom left wing. The airplane sustained substantial damage to the lower left wing spar. The meteorological aerodrome report (METAR) reported the wind as calm, 5 minutes before the accident. One hour before the accident, the METAR reported the wind as variable at 3 knots. One hour after the accident the METAR reported the wind as variable at 4 knots. The pilot reported that there were no mechanical failures or anomalies with the airplane prior to or during the flight that would have prevented normal flight operation. 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-Directional control-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
Verbatim from NTSB's published report. Source file
NTSB_2016_GAA16CA206.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 (runway excursion). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- SKYbrary (Eurocontrol) 2024 · SKYbrary article
Runway Excursion — SKYbrary Knowledge Base
SKYbrary runway excursion review — RE-OE (overruns) + RE-LO (lateral). Risk drivers: long landing, high approach speed, contaminated surface, tailwind, mis-set autobrakes.
- NTSB Aircraft Accident Reports 2019 · Accident report
Embraer ERJ 175 Runway Excursion at Charlotte Douglas
Republic Airline ERJ-175 runway excursion CLT, January 2018. Examines a low-energy runway excursion involving misuse of autobrakes + thrust reverser response after a high-crosswind landing on a contam…
- NASA NTRS 2025 · Presentation
Uncovering Resilient Behavior in the Aviation Safety Reporting System Using Large Language Models
Resiliency is present in everyday life, both in system design and exhibited by the operators that function within these systems.
- NASA NTRS 2025 · Conference Paper
Uncovering Resilient Behavior in the Aviation Safety Reporting System Using Large Language Models
Resiliency is present in everyday life, both in system design and exhibited by the operators that function within these systems.
- Flight Safety Foundation 2024 · FSF / AeroSafety World
Runway Safety Initiative Final Report (RSI)
Foundation Runway Safety Initiative final report — comprehensive analysis of runway excursion + incursion risk drivers worldwide.
- Semantic Scholar 2020 · Article
Towards online prediction of safety-critical landing metrics in aviation using supervised machine learning
Abstract In recent years, due to the increased availability of data and improvements in computing power, application of machine learning techniques to various aviation safety problems for identifying,…
Browse the full corpus — academia portal ↗