# NTSB Accident ANC23LA053
> **AERONCA 7DC** · 2023-07-13 · Ninilchik, AK, USA · NONE
## Event
- **NTSB number:** ANC23LA053
- **Event ID:** 20230720192670
- **Type:** Accident
- **Date:** 2023-07-13
- **Location:** Ninilchik, AK, USA
- **Coordinates:** 60.037204, -151.63662
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** AERONCA
- **Model:** 7DC
- **Registration:** N83391
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A total loss of engine power due to a shift of a crankshaft main bearing, which resulted in a lack of lubrication and subsequent overheating and failure of the engine crankshaft.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC23LA053) · AI Analytics · CC0 1.0*