# NTSB Incident CEN17IA233
> **SCHRODER DAVID LANCAIR IV P** · 2017-06-01 · Fulton, NY, USA · NONE
## Event
- **NTSB number:** CEN17IA233
- **Event ID:** 20170616X23403
- **Type:** Incident
- **Date:** 2017-06-01
- **Location:** Fulton, NY, USA
- **Coordinates:** 43.350833, -76.388053
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** SCHRODER DAVID
- **Model:** LANCAIR IV P
- **Registration:** N366TF
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The loss of oil pressure and subsequent engine overspeed/surge during a zero g-force maneuver, which resulted in the separation of a crankshaft counterweight and loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN17IA233) · AI Analytics · CC0 1.0*