# NTSB Accident SEA93LA027
> **SWEARINGEN SA-226TC** · 1992-11-21 · BILLINGS, MT, USA · NONE
## Event
- **NTSB number:** SEA93LA027
- **Event ID:** 20001211X16106
- **Type:** Accident
- **Date:** 1992-11-21
- **Location:** BILLINGS, MT, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** SWEARINGEN
- **Model:** SA-226TC
- **Registration:** N139PA
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

FAILURE OF A GEAR DOOR ROLLER, WHICH NECESSITATED A GEAR UP LANDING. FACTORS INCLUDE INADEQUATE LUBRICATION.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA93LA027) · AI Analytics · CC0 1.0*