# NTSB Accident MIA98LA166
> **Grumman American AA-5A** · 1998-05-18 · SUMTER, SC, USA · MINR
## Event
- **NTSB number:** MIA98LA166
- **Event ID:** 20001211X10160
- **Type:** Accident
- **Date:** 1998-05-18
- **Location:** SUMTER, SC, USA
- **Coordinates:** 33.940853, -80.389266
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** Grumman American
- **Model:** AA-5A
- **Registration:** N9884U
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The partial failure of the oil cooler bypass valve which resulted in the over-temperature and loss of oil pressure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA98LA166) · AI Analytics · CC0 1.0*