# NTSB Accident SEA99LA070
> **Piper PA-24-180** · 1999-05-23 · HILLSBORO, OR, USA · NONE
## Event
- **NTSB number:** SEA99LA070
- **Event ID:** 20001212X18894
- **Type:** Accident
- **Date:** 1999-05-23
- **Location:** HILLSBORO, OR, USA
- **Coordinates:** 45.580608, -122.909866
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 3
## Aircraft
- **Make:** Piper
- **Model:** PA-24-180
- **Registration:** N6017P
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loose alternator drive belt, and the flight crew's decision to continue flight with a known electrical system deficiency, resulting in disabling of the aircraft electrical system and landing with the gear not down-and-locked.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA99LA070) · AI Analytics · CC0 1.0*