# NTSB Accident NYC99LA139
> **Aero Commander 500S** · 1999-06-12 · WINDSOR LOCKS, CT, USA · NONE
## Event
- **NTSB number:** NYC99LA139
- **Event ID:** 20001212X19092
- **Type:** Accident
- **Date:** 1999-06-12
- **Location:** WINDSOR LOCKS, CT, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Aero Commander
- **Model:** 500S
- **Registration:** N33PG
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Hydraulic system contamination which prevented normal landing gear extension.  A factor was the misjudged landing flare by the flying pilot.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC99LA139) · AI Analytics · CC0 1.0*