# NTSB Incident ENG09IA016
> **BOEING 767 432ER** · 2009-09-08 · St. Johns, CA · —
## Event
- **NTSB number:** ENG09IA016
- **Event ID:** 20090910X95942
- **Type:** Incident
- **Date:** 2009-09-08
- **Location:** St. Johns, CA
- **Coordinates:** 47.5, -52.599998
## Injuries
- **Highest injury:** —
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 0
## Aircraft
- **Make:** BOEING
- **Model:** 767 432ER
- **Registration:** N840MH
- **FAR Part:** 121
- **Engines:** —
- **Damage:** MINR
## Conditions
- **Light:** NR
- **Weather:** Unk
## Probable cause

Incorrect installation of a wire bundle, which contained wires for oxygen system, passenger address system and lavatory power, led to chafing of the wires on structure. The chafing eventually exposed the wire conductors and resulted in electrical arcing, malfunction of the affected systems and a sulfur odor.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ENG09IA016) · AI Analytics · CC0 1.0*