# NTSB Accident WPR17LA145
> **PIPER L 21B** · 2017-07-08 · Big Timber, MT, USA · SERS
## Event
- **NTSB number:** WPR17LA145
- **Event ID:** 20170708X13311
- **Type:** Accident
- **Date:** 2017-07-08
- **Location:** Big Timber, MT, USA
- **Coordinates:** 45.841945, -109.894165
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** L 21B
- **Registration:** N99031
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's decision to fly at low altitude in the vicinity of power lines, which resulted in a wire strike.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA145) · AI Analytics · CC0 1.0*