WPR21LA261

NTSB accident investigation · Beech 95-A55 · North Las Vegas, NV · June 29, 2021

Accident · No injuriesClass 4 · LimitedFinal report
Date
June 29, 2021, 08:20 local (15:20 UTC)
Place
North Las Vegas, NV
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N764SUBeech 95-A55
Defining event
Landing-landing roll: Landing gear collapse
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20210629012479A
Case key
103428

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’s inability to maintain directional control during landing roll due to a flat tire.

Findings · 4

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.

Landing gear system: tire casingAircraft › Aircraft systems · FailureBeech 95-A55: 1 caseAll aircraft: 36 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotBeech 95-A55: 1 caseAll aircraft: 1,391 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech 95-A55: 4 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotBeech 95-A55: 7 casesAll aircraft: 9,295 casesProbable cause

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 flight instructor of the multi-engine, retractable landing gear airplane reported that, shortly after touchdown, with the pilot receiving instruction at the flight controls, the pilot was simulating max braking, the airplane began to veer left. He announced, “easy on brakes and back on center line.” The airplane continued to veer left, he started to apply right pressure and stated, “my controls off off off.” He heard a sound similar to a flat tire, the left main landing gear collapsed, and the airplane exited the left side of the runway. The pilot receiving instruction reported that when the airplane touched down, it immediately began to veer left. Despite multiple control inputs, the airplane continued to veer left. The flight instructor assumed the flight controls and continued to apply max right rudder. The left main landing gear began to chatter, then collapsed, and the airplane exited the left side of the runway. Postaccident examination of the airplane revealed that a large flat spot on the left main tire casing along with a large hole in the tire and tube. The left main landing gear actuator arm was found bent. It’s likely that during the landing roll, as a result of a side load imposed on the left main landing gear, the landing gear actuator arm was able to bend, which allowed for the landing gear to become unlocked and subsequently collapse. The airplane sustained substantial damage to the left aileron and left wing. The flight instructor and pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation, other than the flat tire.

Aircraft

Registration
N764SU
Reported as
Beech 95-A55
Category
Airplane
Serial number
TC-356
Built
1962
Airframe hours
1,198.7
Engines
Continental Motors IO-470, 260 horsepower, reciprocatingContinental Motors IO-470, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Ace Of Spades Aviation LLC
Registered owner
Ace Of Spades Aviation LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 9, 2021 · 30.5 hours before
Destination
Same as departure
Airport
VGT · North Las Vegas, runway 12R, 5,001 × 75 ft, asphalt
Equipment
Stall warning system, Auto-pilot, ADS-B

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
34
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
August 13, 2020
Seat
Left
Restraint
None
Flight hours
1,286 total · 2 in this make and model · 1,176 as pilot in command · 115 in the last 90 days · 32 in the last 30 days · 4 in the last 24 hours
Role
Pilot
Age
32
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
August 28, 2020
Seat
Left
Restraint
3-point
Flight hours
331 total · 11 in this make and model · 266 as pilot in command · 17 in the last 90 days · 12 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
93 °F, dew point 43 °F
Altimeter
29.80 inHg
Observed at
KVGT
METAR
KVGT 291453Z 00000KT 10SM CLR 34/06 A2980 RMK AO2 SLP073 T03440061 53015 $

Docket · 5

The files NTSB released with the investigation on August 20, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 16.7 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.