# NTSB Accident DEN91FA098
> **BOEING 707-323C** · 1991-07-09 · DENVER, CO, USA · NONE
## Event
- **NTSB number:** DEN91FA098
- **Event ID:** 20001212X17522
- **Type:** Accident
- **Date:** 1991-07-09
- **Location:** DENVER, CO, USA
- **Coordinates:** 39.669612, -105.089347
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 6
- **Total aboard:** 6
## Aircraft
- **Make:** BOEING
- **Model:** 707-323C
- **Registration:** N8404
- **FAR Part:** 121
- **Engines:** 4
- **Damage:** SUBS
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

IMPROPER OVERHAUL OF THE NOSE GEAR ASSEMBLY BY OTHER MAINTENANCE PERSONNEL.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN91FA098) · AI Analytics · CC0 1.0*