# NTSB Accident DEN89LA224
> **PIPER PA-31-350** · 1989-09-08 · MONUMENT VALLEY, UT, USA · NONE
## Event
- **NTSB number:** DEN89LA224
- **Event ID:** 20001213X29358
- **Type:** Accident
- **Date:** 1989-09-08
- **Location:** MONUMENT VALLEY, UT, USA
- **Coordinates:** 41.010784, -111.669471
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 9
- **Total aboard:** 9
## Aircraft
- **Make:** PIPER
- **Model:** PA-31-350
- **Registration:** N3554P
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE PILOT'S FAILURE TO ADEQUATELY COMPENSATE FOR WINDSHEAR.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN89LA224) · AI Analytics · CC0 1.0*