# NTSB Accident DEN99FA086
> **PZL-Mielec M-18B** · 1999-05-25 · ALTUS, OK, USA · FATL
## Event
- **NTSB number:** DEN99FA086
- **Event ID:** 20001212X18743
- **Type:** Accident
- **Date:** 1999-05-25
- **Location:** ALTUS, OK, USA
- **Coordinates:** 34.639942, -99.310516
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** PZL-Mielec
- **Model:** M-18B
- **Registration:** N8199W
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's disregard of takeoff performance data and his failure to jettison the load.  Contributing factors were high density altitude, exceeding the aircraft's maximum allowable gross weight, and the berm.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN99FA086) · AI Analytics · CC0 1.0*