# NTSB Accident DEN03MA035
> **Piper PA-31T** · 2003-01-25 · Denver, CO, USA · FATL
## Event
- **NTSB number:** DEN03MA035
- **Event ID:** 20030203X00145
- **Type:** Accident
- **Date:** 2003-01-25
- **Location:** Denver, CO, USA
- **Coordinates:** 39.766666, -105.050003
## Injuries
- **Highest injury:** FATL
- **Fatal:** 5
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 11
## Aircraft
- **Make:** Piper
- **Model:** PA-31T
- **Registration:** N360LL
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

Both pilots' inadequate visual lookout.  A contributing factor was the Cheyenne pilot operating the airplane with a known transponder deficiency.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN03MA035) · AI Analytics · CC0 1.0*