# NTSB Incident CEN11IA280
> **BEECH 90B** · 2011-04-11 · Chickasha, OK, USA · NONE
## Event
- **NTSB number:** CEN11IA280
- **Event ID:** 20110412X74253
- **Type:** Incident
- **Date:** 2011-04-11
- **Location:** Chickasha, OK, USA
- **Coordinates:** 35.097221, -97.967498
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 4
- **Total aboard:** 4
## Aircraft
- **Make:** BEECH
- **Model:** 90B
- **Registration:** N37OU
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The mechanic's improper installation of the aileron.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN11IA280) · AI Analytics · CC0 1.0*