# NTSB Incident ENG21LA011
> **CESSNA 501** · 2020-12-31 · Opa Locka, FL, USA · NONE
## Event
- **NTSB number:** ENG21LA011
- **Event ID:** 20210105102496
- **Type:** Incident
- **Date:** 2020-12-31
- **Location:** Opa Locka, FL, USA
- **Coordinates:** 25.907, -80.278
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** CESSNA
- **Model:** 501
- **Registration:** N75TL
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

An uncontained left engine failure caused by a low cycle fatigue crack that originated from a manufacturing machining groove on the high pressure compressor impeller aft face. Contributing to the incident was service bulletin borescope inspection criteria that was insufficient to detect the presence of machining grooves on the high pressure compressor impeller at the time the incident engine was inspected in May 2004.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ENG21LA011) · AI Analytics · CC0 1.0*