# NTSB Incident ENG17IA036
> **BOEING 757 232** · 2017-09-06 · Las Vegas, NV, USA · NONE
## Event
- **NTSB number:** ENG17IA036
- **Event ID:** 20170907X71900
- **Type:** Incident
- **Date:** 2017-09-06
- **Location:** Las Vegas, NV, USA
- **Coordinates:** 36.083889, -115.15361
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 184
- **Total aboard:** 184
## Aircraft
- **Make:** BOEING
- **Model:** 757 232
- **Registration:** N686DA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

A No. 1 (left) engine undercowl fire caused by a fuel nozzle installation error during engine overhaul at Delta TechOps. A fuel nozzle b-nut was cross threaded, which allowed fuel to leak on hot engine case surfaces and subsequently ignite.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ENG17IA036) · AI Analytics · CC0 1.0*