Beech M35 accident near Osage Beach, Missouri, September 17, 2021
On September 17, 2021 at about 3:12 pm local time, a 1960 Beech M35, registered N9835R, was substantially damaged in an accident near Osage Beach, Missouri (Grand Glaize-Osage Beach airport). It was an instructional flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The pilot and flight instructor’s failure to ensure that the landing gear were extended prior to landing.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 17, 2021 · about 3:12 pm local time
- Place
- Osage Beach, Missouri · Grand Glaize-Osage Beach · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Beech M35, built 1960 · all M35s on the register
- Registration
- N9835R · registry record · serial D-6359
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot and flight instructor were conducting a flight review when on the downwind leg of the airport traffic pattern the pilot reduced the throttle to idle to simulate an engine failure, but then inadvertently extended the flaps instead of the landing gear. While on short final, the pilot increased engine power to ensure that the airplane reached the runway and, as such, the landing gear horn did not sound. However, when engine power was subsequently reduced to idle before touch down, the pilot then heard the landing gear horn and the airplane landed on the runway with the landing gear retracted. The airplane came to rest on the runway and sustained substantial damage to the engine keel beam. The pilot and flight instructor both reported that there were no mechanical malfunctions or anomalies with the airplane that would have precluded normal operation.
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
What happened, in order
- 551095 during descent - normal
The NTSB's findings
- Personnel issues › Task performance › Use of equip/info › Use of equip/system › Pilot
- Aircraft › Aircraft systems › Landing gear system › Main landing gear › Not used/operated
- Personnel issues › Task performance › Use of equip/info › Use of equip/system › Instructor/check pilot
Pilot
- Ratings: single-engine land, none, none, none
- Last flight review: August 23, 2019
- Medical certificate: class 3
- Injury: no injuries
Flight instructor
- Ratings: multi-engine land, single-engine land, ASE, APLN, none
- Flight time: 5,970 hours in all; 36 in this make and model; 69 in the last 90 days; 17 in the last 30 days; 3,526 as pilot in command
- Last flight review: January 24, 2021
- Medical certificate: class 1
- Injury: no injuries
The aircraft
- Airframe total time: 3,041.9 hours
- Last inspection: type not recorded, April 23, 2021
- Maximum gross weight: 2,960 lb
- Seats: 5
- Landing gear: retractable
- Engine: Continental Motors IO-470C (piston); 3,060 hours total
- Operating certificate: in the vicinity
The flight
- Departed from: KSUS Saint Louis MO at 2:15 pm
- Flight plan: none
- Runway 14/3, 3,205 ft by 60 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 170° at 3 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 75°C, dew point 66°C
- Altimeter: 30.120001 inHg
- Observation at 9:56 am from KAIZ, 6 miles away
Weather report (METAR): KAIZ 171456Z AUTO 17003KT 10SM CLR 24/19 A3012 RMK AO2 SLP192 T02390194 51016
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 2 |
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 docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site 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 CEN21LA453.