# NTSB LAX86LA234: Mooney M-18C, N4146, Lakeport, CA, May 26, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 26, 1986, 12:15 local (19:15 UTC)
- Place: Lakeport, CA
- Coordinates: 39.040412, -122.930282 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.0404&lon=-122.9303&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 25170
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86LA234
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25170/pdf
- Page: https://openairdocs.org/ntsb/LAX86LA234

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - poor, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
- Nose over, landing - roll
  - terrain condition - ditch (contributing factor)
  - landing gear,nose gear - overload

## Analysis

THE PLT INDICATED THAT THERE WAS A GUSTY LEFT CROSSWIND PRESENT DURING LANDING. THE ACFT DRIFTED RIGHT OFF THE 40 FT WIDE ASPHALT RWY AND COLLIDED WITH A SMALL DITCH AND DIRT BANK. THE ACFT THEN NOSED OVER INTO THE ARPT DRAINAGE DITCH.

## Aircraft

- Registration: [N4146](https://openairdocs.org/deregistered/N4146-2024-01-27), registration cancelled 2024-01-27, S/N 312, built 1954 (OpenAirDocs)
- Reported make and model: MOONEY M-18C
- Registry model: [Mooney M-18C](https://openairdocs.org/model/mooney-m-18c) (registry code 5870102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 312
- Airframe hours: 1511
- Engines: CONTINENTAL C-65-8 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: James A. Foline
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 23, 1986, 6 hours before
- Departed: AUN, AUBURN, CA
- Destination: 102, LAKEPORT, CA
- Airport: 102, Lampson, runway 28, 3,450 × 40 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; flight hours: 159 total, 4 in this make and model, 59 as pilot in command, 49 in the last 90 days, 24 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 12 knots, gusting 18
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## 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 19860526019869A](https://openairdocs.org/incident/19860526019869A), May 26, 1986: Mnmite M18C, Lakeport, CA, Substantial damage. The pilot failed to prevent the aircraft from veering off the runway and flipping over in a ditch.

## Other investigations on N4146 (1)

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.

- [NTSB OAK66D0182](https://openairdocs.org/ntsb/OAK66D0182), Jan 28, 1966: Mooney M18C (N4146), Sacramento, CA, substantial damage

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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