# NTSB Accident LAX92LA108
> **SIKORSKY S55B** · 1992-02-04 · RICHVALE, CA, USA · SERS
## Event
- **NTSB number:** LAX92LA108
- **Event ID:** 20001211X14125
- **Type:** Accident
- **Date:** 1992-02-04
- **Location:** RICHVALE, CA, USA
- **Coordinates:** 39.480697, -121.839828
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** SIKORSKY
- **Model:** S55B
- **Registration:** N1033
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE FAILURE OF THE LATERAL CONTROL ARM IN THE CYCLIC CONTROL SYSTEM.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX92LA108) · AI Analytics · CC0 1.0*