No fatalities

13 Feb 2017: BOMBARDIER INC DHC 8 311 NO SERIES — Commutair — Dulles, VA

Dulles, VA, United States

On 13 Feb 2017, a BOMBARDIER INC DHC 8 311 NO SERIES operated by Commutair was involved in an aviation accident near Dulles, VA. No fatalities were reported. Investigators recorded the probable cause as: an inadvertent encounter with clear air turbulence. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A flight attendant suffered a broken ankle when a Bombardier DHC-8 operated by Commutair encountered moderate turbulence during descent near Washington Dulles International Airport.

Incident Overview

On February 13, 2017, at 1115 eastern standard time, a Bombardier DHC-8 aircraft operated by Commutair as a scheduled passenger flight encountered turbulence while descending toward Washington Dulles International Airport (IAD). The flight, which originated in Fayetteville, North Carolina, experienced an event that resulted in a serious injury to one of the flight attendants. The airplane sustained no damage, and no other occupants were injured.

Sequence of Events

According to the operator, the flight was in smooth conditions during the cruise and initial descent phases. The captain reported that after completing the before-landing checklist at 4,000 feet, approximately 50 miles south of IAD, the aircraft entered a "pocket" of moderate turbulence. This caused a descent rate of about 600 feet per minute and an altitude loss of roughly 400 feet. The captain then called the cabin to check on the passengers and crew, and was informed that the flight attendant had injured her leg and could not walk.

Injuries and Response

The flight attendant stated that she was in the final stages of preparing the cabin for landing when the turbulence occurred. Passengers on board assisted her until the aircraft landed. Upon arrival at the gate, paramedics met the aircraft. The flight attendant was later diagnosed with a broken ankle.

No other injuries were reported, and the aircraft remained undamaged.

Contributing factors

Effect on personnel