# NTSB LAX90LA242: Cessna 340, N5411M, Salinas, CA, July 1, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 1, 1990, 14:35 local (21:35 UTC)
- Place: Salinas, CA
- Coordinates: 38.689392, -121.600143 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.6894&lon=-121.6001&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report November 23, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 26857
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX90LA242
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26857/pdf
- Page: https://openairdocs.org/ntsb/LAX90LA242

## Probable cause

THE FAILURE OF MAINTENANCE PERSONNEL TO REINSTALL THE LANDING GEAR RETRACT/EXTENSION LINKAGE AND THE FAILURE OF INSPECTION PERSONNEL TO DETECT THE IMPROPER INSTALLATION.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Main gear collapsed, landing - flare/touchdown
  - landing gear,normal retraction/extension assembly - disconnected (contributing factor)
  - maintenance,inspection - not performed, other maintenance personnel (cause)
  - maintenance,installation - not performed, other maintenance personnel (cause)

## Analysis

THE AIRCRAFT'S RIGHT MAIN LANDING GEAR COLLAPSED ON LANDING. THE LANDING GEAR RETRACT/EXTEND LINKAGE WAS FOUND DISCONNECTED AND THE ATTACHING HARDWARE, NUTS AND WASHERS, WERE FOUND IN THE WHEEL WELL. THE LINKAGE HAD BEEN DISCONNECTED DURING MAINTENANCE PERFORMED THREE OPERATIONAL HOURS PRIOR TO THE ACCIDENT.

## Aircraft

- Registration: [N5411M](https://openairdocs.org/deregistered/N5411M-2008-08-13), registration cancelled 2008-08-13, S/N 340-0026, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 340
- Registry model: [Cessna 340](https://openairdocs.org/model/cessna-340) (registry code 2076404) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 3400026
- Engines: CONTINENTAL TSIO-520-NB 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Benech, Edmond A., doing business as Dem Associates
- Registered owner: Unknown
- Departed: UKI, UKIAH, CA
- Destination: SNS
- Airport: SNS, Salinas Muni, runway 31, 4,825 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; flight hours: 2,021 total, 1,965 as pilot in command, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 15 knots
- Visibility: 30 statute miles
- Lowest ceiling: 15,000 ft broken
- Temperature: -0 °F, dew point -0 °F
- Observed at: SNS

## 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 19900701023479A](https://openairdocs.org/incident/19900701023479A), Jul 1, 1990: Cessna 340CESSNA, Salinas, CA, Substantial damage. Right main landing gear collapsed on landing. Bell crank disconnected from actuator. Had just been removed replaced

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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