# NTSB Accident ERA21LA327
> **LET L-23 SUPER BLANIK** · 2021-07-31 · Sterling, MA, USA · SERS
## Event
- **NTSB number:** ERA21LA327
- **Event ID:** 20210816103704
- **Type:** Accident
- **Date:** 2021-07-31
- **Location:** Sterling, MA, USA
- **Coordinates:** 42.425917, -71.792861
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** LET
- **Model:** L-23 SUPER BLANIK
- **Registration:** N373BA
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The flight instructor’s lack of remedial action, which resulted in an aerodynamic stall in the landing flare and a hard landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA21LA327) · AI Analytics · CC0 1.0*