# NTSB Accident ERA11FA101
> **CESSNA 172H** · 2010-12-31 · Weyers Cave, VA, USA · FATL
## Event
- **NTSB number:** ERA11FA101
- **Event ID:** 20110102X35752
- **Type:** Accident
- **Date:** 2010-12-31
- **Location:** Weyers Cave, VA, USA
- **Coordinates:** 38.27222, -78.889999
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 5
## Aircraft
- **Make:** CESSNA
- **Model:** 172H
- **Registration:** N2876L
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The inherent limitations of the see-and-avoid concept, which made it difficult for the helicopter pilot to see the airplane before the collision. Contributing to the accident was the airplane pilot’s non-standard entry to the airport traffic pattern, which, contrary to published Federal Aviation Administration guidance, was conducted 500 feet below the airport's published traffic pattern altitude and in a direction that conflicted with the established flow of traffic.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA11FA101) · AI Analytics · CC0 1.0*