Grumman G-164A accident near Red Lake Falls, Minnesota, May 21, 1998
On May 21, 1998 at about 12:30 pm local time, a Grumman G-164A, registered N9632, was substantially damaged in an accident near Red Lake Falls, Minnesota (Red Lake Falls airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
a locked brake for undetermined reasons.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 21, 1998 · about 12:30 pm local time
- Place
- Red Lake Falls, Minnesota · Red Lake Falls · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G-164A · all G-164As on the register
- Registration
- N9632 · registry record · serial 1196
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
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.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land; instrument: airplane
- Flight time: 819 hours in all; 353 in this make and model; 682 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: ctr
The aircraft
- Airframe total time: 5,581 hours
- Last inspection: annual inspection, April 23, 1998; 65 hours since
- Maximum gross weight: 4,500 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R1340-AN1 (piston); 0 hours total
The flight
- Departed from: D81 at 12:00 pm
- Flight plan: none
- Runway 33, 2,550 ft by 148 ft
Weather at the time
- Light: daylight
- Wind: from 040° at 6 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 55°F (13°C), dew point 45°F (7°C)
- Altimeter: 29.00 inHg
- Observation at 11:53 am from GFK, 42 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N9632 the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CHI98LA230.