# NTSB Accident LAX91LA085
> **PIPER PA 32-300** · 1991-01-21 · ANAHEIM, CA, USA · MINR
## Event
- **NTSB number:** LAX91LA085
- **Event ID:** 20001212X16344
- **Type:** Accident
- **Date:** 1991-01-21
- **Location:** ANAHEIM, CA, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** PIPER
- **Model:** PA 32-300
- **Registration:** N1885H
- **FAR Part:** 135
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAWN
- **Weather:** VMC
## Probable cause

MAINTENANCE PERSONNEL IN THAT THEY IMPROPERLY ADJUSTED THE LEFT MAGNETO WHICH RESULTED IN THE COMPLETE EROSION OF THE ELECTRODES FROM SIX OF THE TWELVE INSTALLED SPARK PLUGS. THE INSTALLATION OF SPARK PLUGS WITH COLDER HEAT RANGES THAN SPECIFIED BY THE MANUFACTURER AND RISING TERRAIN AHEAD OF THE AIRCRAFT DURING THE FORCED LANDING 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=LAX91LA085) · AI Analytics · CC0 1.0*