# NTSB Accident LAX96LA180
> **Cessna 320** · 1996-04-28 · MAMMOTH LAKES, CA, USA · NONE
## Event
- **NTSB number:** LAX96LA180
- **Event ID:** 20001208X05623
- **Type:** Accident
- **Date:** 1996-04-28
- **Location:** MAMMOTH LAKES, CA, USA
- **Coordinates:** 37.57986, -118.839027
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 3
## Aircraft
- **Make:** Cessna
- **Model:** 320
- **Registration:** N5752X
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the partial failure of the right engine turbocharger wastegate butterfly valve to fully close due to mechanical binding and the low setting of its associated absolute pressure controller.  A related factor was the high density altitude which reduced the engine's ability to produce adequate manifold pressure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX96LA180) · AI Analytics · CC0 1.0*