# NTSB Incident DCA22LA179
> **BOEING 767-332** · 2022-07-07 · New York, NY, USA · NONE
## Event
- **NTSB number:** DCA22LA179
- **Event ID:** 20220815105738
- **Type:** Incident
- **Date:** 2022-07-07
- **Location:** New York, NY, USA
- **Coordinates:** 56.112671, -46.145325
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 233
- **Total aboard:** 233
## Aircraft
- **Make:** BOEING
- **Model:** 767-332
- **Registration:** N181DN
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** NR
- **Weather:** Unk
## Probable cause

The failure of maintenance personnel to close the drain mast heater circuit breakers which resulted in the formation of ice in the forward drain mast, an improper flow of wastewater into the main landing gear wheel well, and the formation of ice on one or more aileron system components.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA22LA179) · AI Analytics · CC0 1.0*