# NTSB SEA87LA037: Cessna T310Q, N7581Q, Medford, OR, December 17, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 17, 1986, 11:00 local (19:00 UTC)
- Place: Medford, OR
- Coordinates: 45.940742, -122.920112 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.9407&lon=-122.9201&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40574
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA87LA037
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40574/pdf
- Page: https://openairdocs.org/ntsb/SEA87LA037

## Sequence of events

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

- Main gear collapsed, taxi - from landing
  - airport facilities,runway/landing area condition - icy (contributing factor)
  - aircraft handling - poor, pilot in command (cause)
  - landing gear,main gear - overload
  - ground loop/swerve - uncontrolled, pilot in command (cause)

## Analysis

DURING TURN OFF FROM THE RUNWAY TO THE TAXIWAY THE LEFT MAIN GEAR COLLAPSED. THE RUNWAY AND TAXIWAY WERE ICY AND WET. EXAMINATION OF THE LANDING GEAR INDICATED AN OVERLOAD FAILURE.

## Aircraft

- Registration: [N7581Q](https://openairdocs.org/deregistered/N7581Q-2013-05-08), registration cancelled 2013-05-08, S/N 310Q0081, built 1970 (OpenAirDocs)
- Reported make and model: CESSNA T310Q
- Registry model: [Cessna T310Q](https://openairdocs.org/model/cessna-t310q) (registry code 2074244) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 31000081
- Airframe hours: 3399
- Engines: CONTINENTAL TSIO-520 280 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Mechano Electro Works, Inc.
- Registered owner: Mechano Electro Works
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, December 3, 1986
- Departed: SJU, SAN JOSE, CA
- Destination: MFR, MEDFORD, OR
- Flight plan: IFR
- Airport: Medford Jackson County, runway 14, 6,700 × 150 ft, macadam

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 10,960 total, 1,870 in this make and model, 10,850 as pilot in command, 144 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: calm
- Visibility: 3 statute miles
- Lowest ceiling: 200 ft
- Temperature: 32 °F
- Observed at: MFR

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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