# NTSB LAX88LA228: Consolidated Aeronautics Lake LA-4-200, N6026V, Clearlake, CA, June 20, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 19, 1988, 19:30 local (Jun 20, 1988, 02:30 UTC)
- Place: Clearlake, CA
- Coordinates: 39.1203, -122.839653 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.1203&lon=-122.8397&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 10, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 26039
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88LA228
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26039/pdf
- Page: https://openairdocs.org/ntsb/LAX88LA228

## Sequence of events

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

- Dragged wing,rotor,pod,float or tail/skid, takeoff - roll/run
  - terrain condition - water
  - directional control - not maintained, pilot in command (cause)
  - lack of recent experience in type of aircraft, pilot in command (contributing factor)

## Analysis

THE PILOT REPORTED THE AIRPLANE'S RIGHT WING STRUCK A SWELL DURING TAKEOFF FROM A LAKE. THE SURFACE WINDS, HOWEVER, WERE OUT OF THE SOUTHWEST AT 10 KNOTS. THE PILOT HAD NOT FLOWN WITHIN THE PRECEDING 24 CALENDAR MONTHS. THERE WERE NO REPORTED AIRPLANE MECHANICAL MALFUNCTIONS OR FAILURES.

## Aircraft

- Registration: [N6026V](https://openairdocs.org/deregistered/N6026V-1990-01-05), registration cancelled 1990-01-05, S/N 779 (OpenAirDocs)
- Reported make and model: Consolidated Aeronautics Inc. LAKE LA-4-200 (LAKE LA-4-)
- Registry model: [Consolidated Aeronautics LAKE LA-4-200](https://openairdocs.org/model/consolidated-aeronautics-lake-la-4-200) (registry code 2400108) (OpenAirDocs)
- Category: Airplane
- Serial number: 779
- Airframe hours: 942
- Engines: LYCOMING IO-360 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Henning, Donald L.
- Registered owner: Henning, Donald L.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 13, 1988, 10 hours before
- Destination: 1O2, LAKEPORT, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine sea, single-engine land; medical: unknown, expired; seat: left; flight hours: 1,500 total, 75 in this make and model, 1,300 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 10 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 84 °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 19880619059409A](https://openairdocs.org/incident/19880619059409A), Jun 19, 1988: Conaer LA4200, Clearlake, CA, Substantial damage. Right wing float hit a swell on water takeoff caused plane to skew sideways. Pilot lacked biennial and a medical.

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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