# NTSB Accident ANC91LA141
> **CESSNA 170-B** · 1991-09-04 · IOWA RIDGE, AK, USA · NONE
## Event
- **NTSB number:** ANC91LA141
- **Event ID:** 20001212X18002
- **Type:** Accident
- **Date:** 1991-09-04
- **Location:** IOWA RIDGE, AK, USA
- **Coordinates:** 64.809631, -147.71965
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** 170-B
- **Registration:** N2487D
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE PILOT-IN-COMMAND'S FAILURE TO IDENTIFY THE ROUGH AND UNEVEN, UNSUITABLE TERRAIN.  CONTRIBUTING TO THE ACCIDENT WAS THE ROUGH AND UNEVEN TERRAIN.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC91LA141) · AI Analytics · CC0 1.0*