# NTSB Accident SEA95LA221
> **Bell UH-1L** · 1995-09-18 · GRACE, ID, USA · SERS
## Event
- **NTSB number:** SEA95LA221
- **Event ID:** 20001207X04608
- **Type:** Accident
- **Date:** 1995-09-18
- **Location:** GRACE, ID, USA
- **Coordinates:** 42.51099, -111.74057
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Bell
- **Model:** UH-1L
- **Registration:** N70410
- **FAR Part:** 133
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the fatigue failure of the centrifugal impeller and the lack of suitable terrain for a forced landing. Factors contributing to the accident were: the lack of required compliance with the FAA Airworthiness Directive by the operator, the insufficiently defined FAA procedure within the AD (failure to include the -07 impeller and establish a cycle count program), and inadequate rotor RPM.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA95LA221) · AI Analytics · CC0 1.0*