# NTSB CEN22LA259: Beech 35, N9475Y, Mesquite, TX, June 5, 2022

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: June 5, 2022, 18:52 local (23:52 UTC)
- Place: Mesquite, TX
- Coordinates: 32.754563, -96.530282 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.7546&lon=-96.5303&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Central Region
- Parties: FAA North Texas FSDO
- NTSB case key (mKey): 105287
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN22LA259
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105287/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=105287
- Page: https://openairdocs.org/ntsb/CEN22LA259

## Probable cause

A collapse of the airplane’s landing gear during the landing roll for reasons that could not be determined based on the available information.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Malfunction (probable cause); cases with it: [Beech 35-A33, 1 case](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=1151404), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md)
- [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Damaged/degraded; cases with it: [Beech 35-A33, 1 case](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=1151404), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md)
- [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Beech 35-A33, 3 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=1151404), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Beech 35-A33, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=1151404), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md)
- [Landing-landing roll: Unknown or undetermined](https://openairdocs.org/ntsb-events/000); cases with it: [Beech 35-A33, 2 cases](https://openairdocs.org/ntsb-events/000/sequence.md?model=1151404), [All aircraft, 1,703 cases](https://openairdocs.org/ntsb-events/000/sequence.md)

## Analysis

The pilot reported that he extended the landing gear prior to the landing and observed that the gear down light was illuminated. The pilot described the touchdown as “soft.” However, during the roll out, the nose gear collapsed followed by the left main gear and the right main gear. The airplane came to rest on the underside of the fuselage on the runway. The pilot shutdown the airplane and the occupants egressed from the airplane without further incident. The air traffic control tower controller observed the airplane during the landing roll and reported that the airplane’s landing gear was down. The airplane sustained substantial damage to the underside of the fuselage. Due to the damage sustained to the landing gear system gear box and swing doors components, a postaccident functional test of the electric gear system could not be performed. The landing gear was able to be extended manually.

## Aircraft

- Registration: [N9475Y](https://openairdocs.org/aircraft/N9475Y), registered now, S/N CD-296, built 1961 (OpenAirDocs)
- Reported make and model: BEECH 35 (A33)
- Registry model: [Beech 35-A33](https://openairdocs.org/model/beech-35-a33) (registry code 1151404) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: CD-296
- Year built: 1961
- Airframe hours: 6387.76
- Engines: Continental Motors I0-470-J 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 18, 2022
- Departed: DWH, Houston, TX
- Destination: Same as departure
- Flight plan: VFR
- Airport: HQZ, Mesquite Metro, runway 18, 6,000 × 100 ft, concrete
- Equipment: Stall warning system, ADS-B, Angle of attack indicator, Auto-pilot, Electronic multifunction display, Handheld GPS, Onboard weather

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review April 24, 2021; seat: left; restraint: lap only; flight hours: 223 total, 127 in this make and model, 223 as pilot in command, 24 in the last 90 days, 13 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 12 knots, gusting 20
- Visibility: 10 statute miles
- Lowest ceiling: 5,000 ft broken
- Temperature: 81 °F, dew point 64 °F
- Altimeter: 29.69 inHg
- Observed at: KHQZ
- METAR: KHQZ 052250Z 09012G20KT 10SM BKN050 BKN055 27/18 A2969

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20220605022189A](https://openairdocs.org/incident/20220605022189A), Jun 5, 2022: Beech 35-A33, Mesquite, TX, Substantial damage. On June 5, 2022, about 17:50 central daylight time, a 1961 Beech 35-A33, registration number [privacy data omitted], serial number CD-296, was substantially…

## Docket (5 files)

The files NTSB released with the investigation on February 7, 2023, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=105287. 49.2 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14402959&FileExtension=pdf&FileName=NTSB%20Form%206120_1%20Redacted-Rel.pdf
- Accident photographs (item 2, PDF, 7 pages, 3.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14403998&FileExtension=pdf&FileName=Accident%20Photographs-Rel.pdf
- Onboard accident landing sequence video footage (.mov file - courtesy of the pilot) (item 3, MOV, 33.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14402760&FileExtension=MOV&FileName=N9475Y%20Onboard%20Accident%20Landing%20Sequence%20Video%20Footage-Rel.MOV
- Various statements (item 4, PDF, 9 pages, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14403573&FileExtension=pdf&FileName=Various%20Statements%20Redacted-Rel.pdf
- Additional documents (item 5, PDF, 7 pages, 9.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14404524&FileExtension=pdf&FileName=Additional%20Documents%20Redacted-Rel.pdf

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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