# NTSB Accident CHI95LA104
> **PIPER PA-28-181** · 1995-03-19 · ANN ARBOR, MI, USA · MINR
## Event
- **NTSB number:** CHI95LA104
- **Event ID:** 20001207X03096
- **Type:** Accident
- **Date:** 1995-03-19
- **Location:** ANN ARBOR, MI, USA
- **Coordinates:** 42.259498, -83.849967
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** PA-28-181
- **Registration:** N4385M
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the failure of the mechanic to close the drain valve after changing oil, resulting in complete loss of engine oil.  A factor was the soft terrain, which resulted in the nose wheel digging in and the airplane nosing over.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI95LA104) · AI Analytics · CC0 1.0*