# NTSB Incident OPS17IA010
> **BOEING 777** · 2016-12-16 · Mt. Wilson, CA, USA · —
## Event
- **NTSB number:** OPS17IA010
- **Event ID:** 20170104X45517
- **Type:** Incident
- **Date:** 2016-12-16
- **Location:** Mt. Wilson, CA, USA
- **Coordinates:** 34.219165, -118.061943
## Injuries
- **Highest injury:** —
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 0
## Aircraft
- **Make:** BOEING
- **Model:** 777
- **Registration:** B-16726
- **FAR Part:** 129
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** NDRK
- **Weather:** IMC
## Probable cause

The incident was caused by the air traffic controller assigning the pilots a left turn instead of the required right turn after departure which placed the aircraft in an unsafe proximity with terrain and obstructions. Contributing to the incident was the air traffic controller's inadequate recovery technique during the development of the incident.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=OPS17IA010) · AI Analytics · CC0 1.0*