# NTSB Incident DEN89IA060
> **DE HAVILLAND DHC-7-102** · 1989-01-12 · GUNNISON, CO, USA · NONE
## Event
- **NTSB number:** DEN89IA060
- **Event ID:** 20001213X27564
- **Type:** Incident
- **Date:** 1989-01-12
- **Location:** GUNNISON, CO, USA
- **Coordinates:** 38.540435, -106.919494
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 51
- **Total aboard:** 51
## Aircraft
- **Make:** DE HAVILLAND
- **Model:** DHC-7-102
- **Registration:** N926RM
- **FAR Part:** 121
- **Engines:** 4
- **Damage:** MINR
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

THE FATIGUE FAILURE OF THE DOWN LOCK MECHANISM RESULTING FROM THE NON-COMPLIANCE WITH A SERVICE BULLETIN BY COMPANY MAINTENANCE PERSONNEL.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN89IA060) · AI Analytics · CC0 1.0*