# NTSB ANC89FA091: de Havilland DHC-2, N11GA, Anchorage, AK, June 13, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: June 12, 1989, 23:33 local (Jun 13, 1989, 07:33 UTC)
- Place: Anchorage, AK
- Coordinates: 61.21944, -149.849609 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.2194&lon=-149.8496&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 19, 1991
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5112
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC89FA091
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5112/pdf
- Page: https://openairdocs.org/ntsb/ANC89FA091

## Probable cause

FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL WHICH RESULTED IN AN INADVERTENT GROUND SWERVE.

## 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
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

THE PILOT STATED THAT AFTER THE FLOAT PLANE TOUCHED DOWN ON THE LAKE, IT VEERED LEFT & STRUCK THE BANK OF THE LAKE. THE ACFT CAME TO REST ON TOP OF THE BANK ABOUT 7 FT FROM THE WATER.

## Aircraft

- Registration: N11GA (not matched to a registry record)
- Reported make and model: de Havilland DHC-2
- Category: Airplane
- Serial number: 1111
- Airframe hours: 7715
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Bush Pilts Air Service Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, June 10, 1989, 27 hours before
- Departed: AK66, WHITTIER, AK
- Airport: LHD, Lake Hood Spb, runway 27, 4,540 × 150 ft, water

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; airline transport; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 4,300 total, 480 in this make and model, 3,000 as pilot in command, 60 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 8 knots
- Visibility: 90 statute miles
- Lowest ceiling: none
- Temperature: 54 °F, dew point 43 °F
- Altimeter: 29.00 inHg
- Observed at: ANC, 1 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 19890612015499A](https://openairdocs.org/incident/19890612015499A), Jun 12, 1989: Dhav DHC2*, Anchorage, AK, Substantial damage. Lost directional control after water landing veered onto the mud bank of the canal.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.