# NTSB Accident LAX91LA305
> **ROBINSON R-22-B** · 1991-07-11 · SAN JOSE, CA, USA · MINR
## Event
- **NTSB number:** LAX91LA305
- **Event ID:** 20001212X17596
- **Type:** Accident
- **Date:** 1991-07-11
- **Location:** SAN JOSE, CA, USA
- **Coordinates:** 37.34069, -121.879348
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** ROBINSON
- **Model:** R-22-B
- **Registration:** N730SH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE STUDENT PILOT'S FAILURE TO UNLOCK THE CYCLIC TRIM AND TO MAINTAIN HIS HOVER ALTITUDE.  HIS LACK OF EXPERIENCE WITH THE AIRCRAFT, INADEQUATE PREFLIGHT, AND THE UNCONTROLLED DESCENT WERE FACTORS IN THE ACCIDENT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX91LA305) · AI Analytics · CC0 1.0*