FTW98LA181
1998-04-11 · MORRILTON, Arkansas, United States · None · 1 aircraft · Status: Completed
Airport MPJ
Current FAA registration · N18WX
- Make / Model
- WAXENFELTER JACK G THORP T-18
- Year of manufacture
- 1996 · 2 years old at event
- Engine
- LYCOMING 0-320 SERIES (180 hp)
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 19961116
- ADS-B equipped
- Yes — Mode-S A1405D
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain directional control during landing roll.
Factual narrative
On April 11, 1998, approximately 1920 central daylight time, a Waxenfelter Thorp T-18 experimental airplane, N18WX, owned and operated by the pilot, was substantially damaged following a loss of control while landing at the Petit Jean Park Airport, near Morrilton, Arkansas. Visual meteorological conditions prevailed, and a flight plan was not filed for the Title 14 CFR Part 91 personal flight. The private pilot and passenger were not injured. The flight originated from Russellville, Arkansas, about 1900. The pilot reported to the NTSB investigator-in-charge that, "very little" cross wind correction was required during the landing to runway 20. During the landing roll, he held the tail off until it came down "normally." A short distance after the tail wheel touched down, the aircraft started to "abruptly" veer to the left. "Normal amount of correction (right rudder) was totally ineffective." As the aircraft continued to veer left, the pilot applied full right rudder and some brake; however, it did not have any effect. The aircraft departed the left side of the runway with "full right rudder, right brake locked, and stick full back." The aircraft was recovering to the right when it slid into a tree, structurally damaging the left wing and left horizontal stabilator. In the enclosed NTSB Form 6120.1/2, the pilot reported that he had accumulated a total of 99 hours in his tailwheel equipped airplane. He further reported that the wind was from 170 degrees at 4 to 5 knots. His examination of the aircraft after the event did not reveal any mechanical problems with the flight controls. During landing roll on runway 20, the aircraft abruptly veered left and departed the runway impacting a tree. The pilot reported that 'very little' cross wind correction was required during the landing. During the landing roll, he held the tail off until it came down 'normally.' A short distance after the tail wheel touched down the aircraft started to veer to the left. 'Normal amount of correction (right rudder) was totally ineffective.' The aircraft departed the left side of the runway with 'full right rudder, right brake locked, and stick full back.' The aircraft was recovering to the right when it slid into a tree. The pilot reported that the wind was from 170 degrees at 4 to 5 knots. His examination of the aircraft after the event did not reveal any mechanical problems with the flight controls. The pilot had accumulated at total of 99 hours in his tailwheel equipped airplane. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1998_FTW98LA181.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
- NTSB Docket Agency ↗
- Aviation Safety Network Aviation press ↗
- Kathryn's Report Aviation press ↗
- Aviation Herald Aviation press ↗
- AVweb Aviation press ↗
- Pilots of America Community ↗
- Reddit /r/flying Community ↗
- FlightAware Aviation press ↗
- AOPA accident database Aviation press ↗
- Google News News ↗
- DuckDuckGo News ↗
Related research
Matched on aircraft type or causal vocabulary (loss of control). All research papers
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …
- NTSB Aircraft Accident Reports 2022 · Accident report Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation) ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.