# NTSB Accident FTW99LA110
> **Cessna 172N** · 1999-04-07 · TURRELL, AR, USA · NONE
## Event
- **NTSB number:** FTW99LA110
- **Event ID:** 20001205X00464
- **Type:** Accident
- **Date:** 1999-04-07
- **Location:** TURRELL, AR, USA
- **Coordinates:** 35.370918, -90.249679
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Cessna
- **Model:** 172N
- **Registration:** N5171K
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The total loss of engine power as the result of improper maintenance which led to the number one cylinder intake valve rocker assembly stud bolt backing out rendering the valve inoperative. A factor was the lack of suitable terrain for 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=FTW99LA110) · AI Analytics · CC0 1.0*