# NTSB SEA88LA133: de Havilland DHC-2, N67679, Seattle, WA, July 9, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 8, 1988, 17:30 local (Jul 9, 1988, 00:30 UTC)
- Place: Seattle, WA
- Coordinates: 47.629867, -122.340759 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.6299&lon=-122.3408&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 14, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 40849
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA88LA133
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40849/pdf
- Page: https://openairdocs.org/ntsb/SEA88LA133

## 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, landing - roll
  - water loop/swerve - intentional (cause)
  - clearance - not maintained, driver of vehicle (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)

## Analysis

ON THE FIRST LEG OF THE SCHEDULED FLOAT PLANE FLIGHT THE PLT HAD LANDED ON LAKE UNION TO EMBARK ADDL PAX. AS THE ACFT DECELERATED 'OFF THE STEP,' A POWER BOAT CONVERGED ON ACFT PATH. PLT MADE RUDDER INPUT TO AVOID COLLISION AND WINGTIP CONTACTED WATER.

## Aircraft

- Registration: [N67679](https://openairdocs.org/aircraft/N67679), registered now, S/N 1294, built 1957 (OpenAirDocs)
- Reported make and model: de Havilland DHC-2
- Registry model: [Dehavilland DHC-2 MK. I(L20A)](https://openairdocs.org/model/dehavilland-dhc-2-mk-i-l20a) (registry code 2808002) (OpenAirDocs)
- Category: Airplane
- Serial number: 1294
- Airframe hours: 13472
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Kenmore Air Harbor, Inc.
- Registered owner: Kenmore Air Harbor, Inc
- Airworthiness certificate: Standard, Utility
- Last inspection: 100 hour, June 22, 1988, 73 hours before
- Departed: S60, SEATTLE, WA
- Flight plan: Company VFR
- Airport: WA57, Lake Union

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; flight instructor, commercial; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 1,150 total, 17 in this make and model, 855 as pilot in command, 100 in the last 90 days, 47 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 7 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 48 °F
- Altimeter: 30.00 inHg
- Observed at: BFI, 7 nm away

## 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 19880708037809A](https://openairdocs.org/incident/19880708037809A), Jul 8, 1988: Dhav DHC2MK1, Seattle, WA, Substantial damage. After coming off the landing step swerved to avoid a speed boat that crossed the landing path. Wing hit the water.

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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