# NTSB Accident ERA13LA409
> **PIPER PA-31P** · 2013-09-08 · Doylestown, PA, USA · NONE
## Event
- **NTSB number:** ERA13LA409
- **Event ID:** 20130910X71433
- **Type:** Accident
- **Date:** 2013-09-08
- **Location:** Doylestown, PA, USA
- **Coordinates:** 40.333057, -75.122222
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** PIPER
- **Model:** PA-31P
- **Registration:** N57JK
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A leaking parking brake valve, which allowed air to enter the left brake line and resulted in the eventual failure of the left wheel brake during the landing roll.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA13LA409) · AI Analytics · CC0 1.0*