# NTSB Accident DEN99FA077
> **Cessna 172Q** · 1999-05-13 · GREELEY, CO, USA · NONE
## Event
- **NTSB number:** DEN99FA077
- **Event ID:** 20001212X18741
- **Type:** Accident
- **Date:** 1999-05-13
- **Location:** GREELEY, CO, USA
- **Coordinates:** 40.440544, -104.670242
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 4
- **Total aboard:** 4
## Aircraft
- **Make:** Cessna
- **Model:** 172Q
- **Registration:** N96299
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Failure of the pilots in the other airplane to maintain a visual lookout.  A factor was the failure of the flight instructor to maintain a visual lookout.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN99FA077) · AI Analytics · CC0 1.0*