# NTSB Accident SEA03FA147
> **Cessna Citation 525** · 2003-07-22 · Coupeville, WA, USA · NONE
## Event
- **NTSB number:** SEA03FA147
- **Event ID:** 20030724X01192
- **Type:** Accident
- **Date:** 2003-07-22
- **Location:** Coupeville, WA, USA
- **Coordinates:** 48.208057, -122.576385
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Cessna
- **Model:** Citation 525
- **Registration:** N996JR
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The loss of airplane pitch control (trim runway and mistrim condition) resulting from a failure in the airplane's electric pitch trim system.  Factors that contributed to the accident were the manufacturer's inadequate design of the pitch trim circuitry that allowed for a single-point failure mode, and the absence of an adequate failure warning system to clearly alert the pilot to the pitch trim runaway condition in sufficient time to respond in accordance with the manufacturer's checklist instructions.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA03FA147) · AI Analytics · CC0 1.0*