# NTSB Accident ANC90LA055
> **PIPER PA-11** · 1990-04-13 · KNIK CLACIER, AK, USA · MINR
## Event
- **NTSB number:** ANC90LA055
- **Event ID:** 20001212X22832
- **Type:** Accident
- **Date:** 1990-04-13
- **Location:** KNIK CLACIER, AK, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** PIPER
- **Model:** PA-11
- **Registration:** N4904M
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A FOREIGN OBJECT (TOOL) HAD JAMMED THE AILERON CONTROLS TO THE RIGHT AS THE PILOT WAS MANEUVERING THE AIRCRAFT FOR A LOW APPROACH TO A STRIP.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC90LA055) · AI Analytics · CC0 1.0*