CEN21LA453

NTSB accident investigation · Beech M35 · Osage Beach, MO · September 17, 2021

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 17, 2021, 10:12 local (15:12 UTC)
Place
Osage Beach, MO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9835RBeech M35
Defining event
Landing-flare/touchdown: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20210917015849A
Case key
103966

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot and flight instructor’s failure to ensure that the landing gear were extended prior to landing.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotBeech M35: 4 casesAll aircraft: 1,391 casesProbable cause
Landing gear system: main landing gearAircraft › Aircraft systems · Not used/operatedBeech M35: 1 caseAll aircraft: 241 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · Instructor/check pilotBeech M35: 4 casesAll aircraft: 1,391 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

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.

Aircraft

Registration
N9835R
Reported as
Beech M35
Category
Airplane
Serial number
D-6359
Built
1960
Airframe hours
3,041.9
Engine
Continental Motors IO-470C, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Weidner Leonard M
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 23, 2021
Departed
KSUS · Saint Louis, MO
Destination
Same as departure
Airport
K15 · Grand Glaize-Osage Beach, runway 14/32, 3,205 × 60 ft, asphalt
Equipment
ADS-B, Handheld GPS

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
August 23, 2019
Seat
Left
Restraint
Lap only
Role
Flight instructor
Age
38
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
January 24, 2021
Seat
Right
Restraint
Lap only
Flight hours
5,970 total · 36 in this make and model · 3,526 as pilot in command · 69 in the last 90 days · 17 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 66 °F
Altimeter
30.12 inHg
Observed at
KAIZ, 6 nm away
METAR
KAIZ 171456Z AUTO 17003KT 10SM CLR 24/19 A3012 RMK AO2 SLP192 T02390194 51016

Docket · 3

The files NTSB released with the investigation on October 14, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 10.9 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.