# NTSB Accident ANC21LA038
> **ENSTROM F-28F** · 2021-05-09 · Palmer, AK, USA · NONE
## Event
- **NTSB number:** ANC21LA038
- **Event ID:** 20210510103058
- **Type:** Accident
- **Date:** 2021-05-09
- **Location:** Palmer, AK, USA
- **Coordinates:** 61.564116, -149.12691
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 3
## Aircraft
- **Make:** ENSTROM
- **Model:** F-28F
- **Registration:** N8627J
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of drive to the rotor system due to the disengagement of the main belt drive tensioning system, which resulted in a forced landing. The disengagement was due to inadequate clearance between the clutch handle and the roll pin in the handle bellcrank when the handle was in the stowed position.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC21LA038) · AI Analytics · CC0 1.0*