# NTSB Accident ANC99LA122
> **de Havilland DHC-3T** · 1999-08-20 · PORT ALSWORTH, AK, USA · NONE
## Event
- **NTSB number:** ANC99LA122
- **Event ID:** 20001212X19409
- **Type:** Accident
- **Date:** 1999-08-20
- **Location:** PORT ALSWORTH, AK, USA
- **Coordinates:** 60.199024, -154.279037
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 4
- **Total aboard:** 4
## Aircraft
- **Make:** de Havilland
- **Model:** DHC-3T
- **Registration:** N888KA
- **FAR Part:** 135
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inadvertent retraction of the trailing edge flaps during the takeoff run.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC99LA122) · AI Analytics · CC0 1.0*