# NTSB Accident ANC99LA042
> **Cessna 180** · 1999-04-04 · ILIAMNA, AK, USA · NONE
## Event
- **NTSB number:** ANC99LA042
- **Event ID:** 20001205X00401
- **Type:** Accident
- **Date:** 1999-04-04
- **Location:** ILIAMNA, AK, USA
- **Coordinates:** 59.850475, -154.55928
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Cessna
- **Model:** 180
- **Registration:** N420SB
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The improper installation of the main landing gear attaching bolt by maintenance personnel, which resulted in total failure of the bolt and collapse of the landing gear.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC99LA042) · AI Analytics · CC0 1.0*