Cessna 150K accident near Waller, Texas, August 20, 1991
On August 20, 1991 at about 8:30 pm local time, a Cessna 150K, registered N6102G, was destroyed in an accident near Waller, Texas. It was an instructional flight under general aviation rules (Part 91). 2 people were killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE INSTRUCTOR PILOT'S FAILURE TO TAKE REMEDIAL ACTION DURING STALL/SPIN TRAINING. FACTORS WERE THE INSTRUCTOR'S OVERCONFIDENCE IN HIS PERSONAL ABILITY AND THE STUDENT'S APPREHENSION OF STALLS.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 20, 1991 · about 8:30 pm local time
- Place
- Waller, Texas · map
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 150K · all 150Ks on the register
- Registration
- N6102G · registry record · serial 15071602
- Damage
- Destroyed
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
AN INSTRUCTOR PILOT AND HIS NINE HOUR STUDENT PILOT WERE ON THEIR FIRST FLIGHT TOGETHER TO PRACTICE SLOW FLIGHT AND STALLS. ACCORDING TO PERSONS CLOSE TO THE STUDENT PILOT, HE HAD DELAYED TAKING FLYING LESSONS FOR SEVERAL YEARS DUE TO HIS APPREHENSION FOR PRACTICING ANY TYPE OF STALLS. THE INSTRUCTOR PILOT HAD PROMISED TO CURE THE STUDENT OF HIS FEAR OF STALLS. TWO WITNESSES OBSERVED THE AIRPLANE ENTERING AND RECOVERING FROM TWO CONSECUTIVE SPINS. THE AIRPLANE WAS REPORTED MISSING IN THE EARLY EVENING AFTER IT FAILED TO RETURN FROM THE TRAINING FLIGHT. WRECKAGE WAS FOUND IN AN OPEN PASTURE THE NEXT MORNING. THE AIRPLANE IMPACTED THE GROUND IN A SLIGHT NOSE DOWN ATTITUDE, IN A SLIGHT RIGHT TURN, WITH NO FORWARD AIRSPEED, RESULTING IN HEAVY COMPRESSION DAMAGE.
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: airline transport pilot, flight instructor
- Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instrument: airplane
- Flight time: 1,575 hours in all; 525 in this make and model; 74 in the last 90 days; 36 in the last 30 days; 1,377 as pilot in command; 1,169 on instruments
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: rgt
The aircraft
- Airframe total time: 3,935 hours
- Last inspection: 100-hour inspection, July 5, 1991; 64 hours since
- Maximum gross weight: 1,600 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental O-200-A (piston); 0 hours total
The flight
- Departed from: DWH Houston TX at 8:00 pm
- Flight plan: none
- Runway 0
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 050° at 8 knots
- Visibility: 10 statute miles
- Sky: scat at 4,000 ft
- Temperature: 97°F (36°C), dew point 64°F (18°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 |
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.