# NTSB Accident ATL98LA055
> **Grumman-Schweizer G-164A** · 1998-03-14 · MARIANNA, FL, USA · MINR
## Event
- **NTSB number:** ATL98LA055
- **Event ID:** 20001211X09627
- **Type:** Accident
- **Date:** 1998-03-14
- **Location:** MARIANNA, FL, USA
- **Coordinates:** 30.850915, -85.230812
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Grumman-Schweizer
- **Model:** G-164A
- **Registration:** N8626H
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of maintenance personnel to secure the magneto cover that resulted in water contamination and the subsequent loss of engine power. A factor was rough and uneven terrain.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ATL98LA055) · AI Analytics · CC0 1.0*