# NTSB Accident LAX96LA279
> **Hiller UH-12E** · 1996-07-20 · HEALDSBURG, CA, USA · NONE
## Event
- **NTSB number:** LAX96LA279
- **Event ID:** 20001208X06291
- **Type:** Accident
- **Date:** 1996-07-20
- **Location:** HEALDSBURG, CA, USA
- **Coordinates:** 38.629318, -122.890426
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Hiller
- **Model:** UH-12E
- **Registration:** N124HA
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the pilot to confirm a loss of power before entering autorotation after reading an erroneous instrument indication on the helicopter's dual tachometer.  Factors in the accident were the erratic instrument, and maintenance personnel who failed to properly repair the system after the discrepancy was previously reported.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX96LA279) · AI Analytics · CC0 1.0*