# NTSB Accident LAX02LA172
> **Cessna 172K** · 2002-05-24 · Lake Thomas A., CA, USA · SERS
## Event
- **NTSB number:** LAX02LA172
- **Event ID:** 20020530X00781
- **Type:** Accident
- **Date:** 2002-05-24
- **Location:** Lake Thomas A., CA, USA
- **Coordinates:** 36.116413, -119.680976
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** Cessna
- **Model:** 172K
- **Registration:** N79944
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

a partial loss of engine power due to the partial malfunction of the left magneto and leakage of the ignition leads for that magneto, due to inadequate maintenance inspections.  Factors in the accident include the high density altitude, the maintenance personnel's failure to accomplish a service bulletin, and the effects of the pilot's manipulation of the mixture and carburetor heat controls.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX02LA172) · AI Analytics · CC0 1.0*