# NTSB Accident NYC91LA249
> **Davis D1K** · 1991-09-29 · CHESTER, CT, USA · NONE
## Event
- **NTSB number:** NYC91LA249
- **Event ID:** 20001212X18179
- **Type:** Accident
- **Date:** 1991-09-29
- **Location:** CHESTER, CT, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Davis
- **Model:** D1K
- **Registration:** N158Y
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

IMPROPER MAINTENANCE ON THE ENGINE WHICH RESULTED IN A POWER LOSS DUE TO A STUCK EXHAUST VALVE AND SUBSEQUENT FORCED LANDING IN UNSUITABLE TERRAIN.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC91LA249) · AI Analytics · CC0 1.0*