# NTSB Accident MIA91LA167
> **SWEARINGEN SA227-TT** · 1991-06-23 · TUPELO, MS, USA · NONE
## Event
- **NTSB number:** MIA91LA167
- **Event ID:** 20001212X17343
- **Type:** Accident
- **Date:** 1991-06-23
- **Location:** TUPELO, MS, USA
- **Coordinates:** 34.259277, -88.73027
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 7
- **Total aboard:** 7
## Aircraft
- **Make:** SWEARINGEN
- **Model:** SA227-TT
- **Registration:** N13JV
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE IMPROPER INSTALLATION OF THE NOSE STEERING ACTUATOR ARMING VALVE BY A MECHANIC WHICH RESULTED IN FAILURE OF THE ACTUATOR AND ON GROUND LOSS OF DIRECTIONAL CONTROL BY THE PILOT DURING LANDING ROLLOUT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA91LA167) · AI Analytics · CC0 1.0*