# NTSB Accident ERA13LA199
> **MAXFLY INC/MCKAY WM SEAREY** · 2013-04-11 · Polk City, FL, USA · MINR
## Event
- **NTSB number:** ERA13LA199
- **Event ID:** 20130412X01737
- **Type:** Accident
- **Date:** 2013-04-11
- **Location:** Polk City, FL, USA
- **Coordinates:** 28.166666, -81.483886
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** MAXFLY INC/MCKAY WM
- **Model:** SEAREY
- **Registration:** N914WM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The improper installation of incorrect attachment hardware by maintenance personnel during an undocumented repair, which resulted in an in-flight structural failure and subsequent loss of aircraft control. Contributing to the accident was the covering of the inspection port during the undocumented repair, which made it impossible for pilots or mechanics to inspect the attachment hardware for problems.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA13LA199) · AI Analytics · CC0 1.0*