# NTSB Accident WPR17LA009
> **Gray Jim Robert Exec 90** · 2016-10-19 · Caldwell, ID, USA · NONE
## Event
- **NTSB number:** WPR17LA009
- **Event ID:** 20161019X35516
- **Type:** Accident
- **Date:** 2016-10-19
- **Location:** Caldwell, ID, USA
- **Coordinates:** 43.641944, -116.635833
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Gray Jim Robert
- **Model:** Exec 90
- **Registration:** N716JB
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to properly tighten the tension bolts during the installation of the alternator belt, which resulted in inadequate voltage to sustain ignition and the subsequent partial loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA009) · AI Analytics · CC0 1.0*