# NTSB Accident CHI98LA032
> **Cessna 421A** · 1997-11-07 · TOMAHAWK, WI, USA · NONE
## Event
- **NTSB number:** CHI98LA032
- **Event ID:** 20001208X09144
- **Type:** Accident
- **Date:** 1997-11-07
- **Location:** TOMAHAWK, WI, USA
- **Coordinates:** 45.470455, -89.720397
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Cessna
- **Model:** 421A
- **Registration:** N2957Q
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

the elevator trim tab bolt backed out, allowing the trim tab to flutter, and destroy the elevator.  The factors involved were improper annual inspection by the maintenance personnel, and the inadequate aircraft preflight done by the pilot.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI98LA032) · AI Analytics · CC0 1.0*