# NTSB Accident ERA16LA066
> **RAYTHEON AIRCRAFT COMPANY A36** · 2015-12-12 · Fayetteville, NC, USA · SERS
## Event
- **NTSB number:** ERA16LA066
- **Event ID:** 20151214X32358
- **Type:** Accident
- **Date:** 2015-12-12
- **Location:** Fayetteville, NC, USA
- **Coordinates:** 34.990001, -78.829719
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 3
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** RAYTHEON AIRCRAFT COMPANY
- **Model:** A36
- **Registration:** N3241N
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

Maintenance personnel's application of an unapproved sealant to the engine case halves during engine overhaul, contrary to manufacturer's instructions, which resulted in lubrication restriction due to a bearing shift and the subsequent internal failure of the engine due to the loss of case through-bolt torque.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA16LA066) · AI Analytics · CC0 1.0*