# Accident 19890919035579A: Dhav STCDHC6, Sleepy Bay, AK, September 19, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 19, 1989, 12:10 local time
- Place: Sleepy Bay, AK
- Damage: Substantial damage
- Phase of flight: Level Off Touchdown
- Operating rules: General operating rules (Part 91)
- Operator: SOQC
- Aircraft: N851TB, a cancelled registration (https://openairdocs.org/deregistered/N851TB-1989-11-17) (OpenAirDocs)
- Registry model: Dehavilland DHC-6 TWIN OTTER (registry code 2802606, https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (OpenAirDocs)
- Reported make and model: DHAV STCDHC6
- Reported engine: PWA PT6A20
- People aboard: 5
- Fatal injuries: 0
- Pilot flight hours: 5,650 total, 2,100 in this make and model, 260 in the last 90 days
- NTSB investigation: [NTSB ANC89LA168](https://openairdocs.org/ntsb/ANC89LA168) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19890919035579A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

DAMAGED FLOAT STRUCTURE LANDING IN LARGE SWELLS IN BAY. EVACUATED BUT WAVE AND WIND DEMOLISHED AIRCRAFT ON A BEACH.

## The NTSB's investigation of this event (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 ANC89LA168](https://openairdocs.org/ntsb/ANC89LA168), Sep 19, 1989: de Havilland DHC-6 (N851TB), Sleepy Bay, AK, substantial damage. Probable cause: SELECTION OF UNSUITABLE TERRAIN (WATER CONDITION) BY THE PILOT. THE ROUGH WATER CONDITION WAS A RELATED FACTOR.

## Other reports on N851TB (1)

Matched to the same aircraft by N-number and date.

- [Accident 19790128013029A](https://openairdocs.org/incident/19790128013029A), Jan 28, 1979: Dhav DHC6200 (N851TB), Anaktuvuk Pass, AK, Substantial damage. Aircraft flown into white out conditions at low altitude. Struck mountain trying to climb to safe altitude.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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