# NTSB Accident IAD02LA034
> **Cessna 170** · 2002-02-23 · Fredericksburg, VA, USA · SERS
## Event
- **NTSB number:** IAD02LA034
- **Event ID:** 20020305X00303
- **Type:** Accident
- **Date:** 2002-02-23
- **Location:** Fredericksburg, VA, USA
- **Coordinates:** 38.266666, -77.449165
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Cessna
- **Model:** 170
- **Registration:** N3832V
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

The unauthorized modification of the air control box by unknown persons, and the failure of subsequent mechanics to note and correct the deficiency.  Factors included the carburetor icing conditions and the unsuitable terrain mandated by the forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD02LA034) · AI Analytics · CC0 1.0*