CEN21LA453
2021-09-17 · Osage Beach, Missouri, United States · None · 1 aircraft · Status: Completed
Airport K15
Current FAA registration · N9835R
- Make / Model
- BEECH M35
- Year of manufacture
- 1960 · 61 years old at event
- Engine
- CONT MOTOR I0-470 SERIES (260 hp)
- Seats / Engines
- 5 seats · 1 engine
- Last airworthiness date
- 19600304
- ADS-B equipped
- Yes — Mode-S ADB960
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot and flight instructor’s failure to ensure that the landing gear were extended prior to landing.
Factual narrative
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. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- — 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
Verbatim from NTSB's published report. Source file
NTSB_2021_CEN21LA453.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
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Related research
Matched on aircraft type or causal vocabulary (engine failure). All research papers
- arXiv 2022 · arXiv preprint Multi-level Adaptation for Automatic Landing with Engine Failure under Turbulent Weather
This paper addresses efficient feasibility evaluation of possible emergency landing sites, online navigation, and path following for automatic landing under engine-out failure subject to turbulent wea…
- NASA NTRS 2019 · Conference Paper Simulation of Liquid Rocket Engine Failure Propagation Using Self-Evolving Scenarios
Traditional probabilistic risk assessment approaches often require failure scenarios to be explicitly defined through event sequences that are then quantified as part of the integrated analysis.
- NASA NTRS 2019 · Conference Paper Rocket engine failure detection using system identification techiques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 · Conference Paper Rocket engine failure detection using system identification techniques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 · Technical Memorandum (TM) A simulator investigation of engine failure compensation for powered-lift STOL aircraft
A piloted simulator investigation of various engine failure compensation concepts for powered-lift STOL aircraft was carried out at the Ames Research Center.
- Semantic Scholar 2019 · Article (AIAA Scitech 2019 Forum) Impact of Engine Failure Constraints on the Initial Sizing of Hybrid-Electric GA Aircraft
Potential advantages of hybrid-electric aircraft are fuel savings, lower emissions, and reduced noise. Since these aircraft generally apply multiple power sources, they can also be designed to sustain…