CHI98LA230
1998-05-21 · RED LAKE FALLS, Minnesota, United States · None · 1 aircraft · Status: Completed
Airport D81
Current FAA registration · N9632
- Make / Model
- GRUMMAN ACFT ENG COR-SCHWEIZER G-164A
- Year of manufacture
- 1974 · 24 years old at event
- Engine
- P&W R1340 SERIES (600 hp)
- Seats / Engines
- 1 seats · 1 engine
- Last airworthiness date
- 19740130
- ADS-B equipped
- Yes — Mode-S AD69E9
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
a locked brake for undetermined reasons.
Factual narrative
On May 21, 1998, at 0730 central daylight time, a Grumman G-164A, N9632, operated by NOCO Ag Service nosed over following a loss of directional control while landing on runway 15 at the Red Lake Falls Municipal Airport, Red Lake Falls, Minnesota. Visual meteorological conditions prevailed and no flight plan was filed. The commercial pilot was not injured. The airplane was substantially damaged. The 14 CFR Part 137 flight originated from Red Lake Falls, at 0700 cdt. The pilot stated she made a three point landing on the grass runway. She stated the airplane rolled for about 100 feet, then the rollout was continued on the paved runway. According to the pilot after traveling about 50 feet on the paved runway the airplane turned to the right at a 10 to 15 degree angle from the centerline. The pilot stated she applied full left rudder followed by the left brake. The airplane veered off the paved runway surface where the pilot applied both brakes. She stated the airplane skidded for approximately 75 feet prior to entering a plowed field where it nosed over. The runway dimensions at the Red Lake Falls Airport is 2,550 feet long and 148 feet wide. Near the approach end of runway 15 there is a section of the runway 1,000 feet long by 60 feet wide which is paved. Inspection of the airplane was conducted by an inspector from the Federal Aviation Administration Minneapolis, Minnesota, Flight Standards District Office. The inspector reported that skid marks were visible on the runway which indicated the right wheel was locked up. Inspection of the wheel failed to reveal the reason for it locking up. The airplane was landed on a portion of the runway which is not paved. It then traveled onto the paved portion during the landing roll. After rolling about 50 feet on the paved portion, the airplane veered right and continued off the side of the runway despite remedial action by the pilot. The airplane continued into a plowed field where it nosed over. Skid marks were visible on the runway after the accident. Inspection of the airplane failed to reveal the reason for the loss of control. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1998_CHI98LA230.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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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
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- 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.