# NTSB Accident LAX91LA260
> **PIPER PA-22-135** · 1991-06-16 · SONITA, AZ, USA · NONE
## Event
- **NTSB number:** LAX91LA260
- **Event ID:** 20001212X17311
- **Type:** Accident
- **Date:** 1991-06-16
- **Location:** SONITA, AZ, USA
- **Coordinates:** 31.749568, -110.659126
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** PA-22-135
- **Registration:** N1429C
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A LOSS OF ENGINE POWER DUE TO A BROKEN PISTON RING IN THE NUMBER 3 CYLINDER, WHICH RESULTED IN THE AIRCRAFT'S INABILITY TO MAINTAIN LEVEL FLIGHT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX91LA260) · AI Analytics · CC0 1.0*