# NTSB Accident ATL90FA089
> **HILLER UH-12D** · 1990-03-31 · SODDY-DAISY, TN, USA · FATL
## Event
- **NTSB number:** ATL90FA089
- **Event ID:** 20001212X22659
- **Type:** Accident
- **Date:** 1990-03-31
- **Location:** SODDY-DAISY, TN, USA
- **Coordinates:** 35.260704, -85.169425
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 1
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** HILLER
- **Model:** UH-12D
- **Registration:** N94496
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FATIGUE INDUCED FAILURE OF THE COLLECTIVE PITCH PUSH ROD (ADJUSTABLE) DURING FLIGHT, AND THE FAILURE OF THE PILOT TO PROVIDE ROUTINE MAINTENANCE. THE PILOT'S LACK OF EXPEREINCE AND HIS FAILURE TO OBTAIN REQUIRED TRAINING AND CERTIFICATION WERE FACTORS IN THE ACCIDENT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ATL90FA089) · AI Analytics · CC0 1.0*