# NTSB Accident SEA04LA162
> **Universal Moulded Pdts. Monocoach** · 2004-08-17 · Pullman, WA, USA · NONE
## Event
- **NTSB number:** SEA04LA162
- **Event ID:** 20040819X01259
- **Type:** Accident
- **Date:** 2004-08-17
- **Location:** Pullman, WA, USA
- **Coordinates:** 46.748611, -117.135559
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Universal Moulded Pdts.
- **Model:** Monocoach
- **Registration:** N11872
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of a landing gear oleo retaining nut safety clip (snap ring) at an unknown point in time, leading to the partial separation of the landing gear strut while in flight, and the full collapse of the strut during the subsequent landing. Factors include the grassy terrain that the pilot chose to execute the landing on.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA04LA162) · AI Analytics · CC0 1.0*