# NTSB Accident LAX91LA157
> **CESSNA 172N** · 1991-04-05 · STOCKTON, CA, USA · NONE
## Event
- **NTSB number:** LAX91LA157
- **Event ID:** 20001212X16800
- **Type:** Accident
- **Date:** 1991-04-05
- **Location:** STOCKTON, CA, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** 172N
- **Registration:** N733MQ
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

THE INSTALLATION BY MAINTENANCE PERSONNEL OF AN INCORRECT GASKET THAT RESULTED IN THE LOSS OF THE ENGINE MAGNETO.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX91LA157) · AI Analytics · CC0 1.0*