Accident Fokker F-28 Fellowship 4000 N489US, Saturday 19 August 1989

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Date:	Saturday 19 August 1989
Time:	19:58 LT
Type:	Fokker F-28 Fellowship 4000
Owner/operator:	USAir
Registration:	N489US
MSN:	11149
Year of manufacture:	1980
Engine model:	ROLLS-ROYCE MK 555-15H
Fatalities:	Fatalities: 0 / Occupants: 14
Other fatalities:	0
Aircraft damage:	None
Category:	Accident
Location:	Vero Beach, FL - United States of America
Phase:	En route
Nature:	Passenger - Scheduled
Departure airport:	Fort Lauderdale, FL
Destination airport:	Jacksonville, FL (JAX
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE CAPT RPRTD THAT, WHILE CRUISING IN VISUAL METEOROLOGICAL CONDITIONS, THE ACFT ENCOUNTERED SEVERE TURBULENCE, WHICH CONTD FOR ABOUT 10 SECONDS. THE SEAT BELT SIGN WAS ILLUMINATED, BUT A FLT ATTENDANT, WHO WAS NOT SEATED, SUFFERED A BROKEN ANKLE. NO FORECAST FOR TURBULENCE OR PIREPS WERE RPRTD.

Probable Cause: IN-FLIGHT ENCOUNTER WITH UNFORECAST TURBULENCE, WHICH RESULTED IN INJURY OF A FLIGHT ATTENDANT, WHO WAS NOT WEARING A SAFETY BELT.

Accident investigation: