# NTSB Accident MIA99LA128
> **Piper PA-44-180** · 1999-04-14 · VERO BEACH, FL, USA · NONE
## Event
- **NTSB number:** MIA99LA128
- **Event ID:** 20001205X00530
- **Type:** Accident
- **Date:** 1999-04-14
- **Location:** VERO BEACH, FL, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Piper
- **Model:** PA-44-180
- **Registration:** N30397
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The improper return to service of a propeller hub by a propeller overhaul company which according to manufacturer's procedures should have been retired due to damage to propeller blades from sudden stoppage. This resulted in undetected fatigue propagation through the hub and separation of a propeller blade in flight. This resulted in overstress separation of the propeller flange and the remainder of the propeller and overstress separation of the engine mount causing the engine to drop down making the aircraft uncontrollable.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA99LA128) · AI Analytics · CC0 1.0*