Grumman G-164A accident near Glynn, Louisiana, February 22, 1990
On February 22, 1990 at about 7:30 pm local time, a Grumman G-164A, registered N930X, was substantially damaged in an accident near Glynn, Louisiana. It was a flight of an unrecorded kind under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
LOSS OF DIRECTIONAL CONTROL ON THE GROUND, DUE TO INTERMITTENT LOCKING OF THE RIGHT BRAKE DURING THE LANDING ROLL.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- February 22, 1990 · about 7:30 pm local time
- Place
- Glynn, Louisiana · 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
- N930X · no longer on the register · serial 442
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
THE AIRPLANE WAS BEING POSITIONED TO A LOCATION FOR AN AG OPERATION. WHILE LANDING ON A ROAD, THE RIGHT TIRE STARTED SKIDDING AND THE AIRPLANE RAN OFF THE RIGHT SIDE OF THE ROAD. IT CROSSED A SMALL DITCH, THEN A DRAINAGE CANAL, AND STOPPED ON THE OPPOSITE BANK OF THE CANAL. INSPECTION REVEALED THAT THE RIGHT BRAKE MASTER CYLINDER ACTUATOR ROD WAS SCORED AND HAD WEAR MARKS, AND THE BRAKE WOULD INTERMITTENTLY STICK, HOLDING PRESSURE ON THE RIGHT BRAKE. THE STICKING WAS CAUSED BY THE PARKING BRAKE LEVER HOLDING ONTO THE WEAR GROOVES.
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: flight instructor, commercial pilot
- Ratings: single-engine land; instructor: airplane single-engine; instrument: airplane
- Flight time: 8,500 hours in all; 450 in this make and model; 15 in the last 90 days; 15 in the last 30 days; 8,250 as pilot in command; 850 on instruments
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: ctr
The aircraft
- Airframe total time: 5,171 hours
- Last inspection: annual inspection, February 7, 1990; 25 hours since
- Maximum gross weight: 4,500 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-985 (piston); 0 hours total
The flight
- Departed from: NONE Glynn LA at 7:15 pm
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 270° at 6 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 66°F (19°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
- Observation at 6:52 pm from BTR, 11 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.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.