# NTSB Incident DEN05IA027
> **McDonnell Douglas DC-9-82** · 2004-11-21 · Denver, CO, USA · NONE
## Event
- **NTSB number:** DEN05IA027
- **Event ID:** 20041122X01849
- **Type:** Incident
- **Date:** 2004-11-21
- **Location:** Denver, CO, USA
- **Coordinates:** 39.827499, -104.660552
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 106
- **Total aboard:** 106
## Aircraft
- **Make:** McDonnell Douglas
- **Model:** DC-9-82
- **Registration:** N234AA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

the first officer's failure to maintain proper glide slope during the landing approach, and the captain's failure to adequately monitor the approach and landing, and his failure to challenge and/or intervene when the first officer continued to descend below the glide slope.  Factors contributing to the incident were the first officer's lack of recent experience in flying a complete ILS approach in actual instrument conditions, the low ceilings and fog.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN05IA027) · AI Analytics · CC0 1.0*