IAD03LA048

NTSB accident investigation · Dornier 328-300 · Roanoke, VA · April 25, 2003

Accident · Serious injuriesLimited investigationFinal report
Date
April 24, 2003, 22:35 local (Apr 25, 2003, 02:35 UTC)
Place
Roanoke, VA
Injuries
1 serious, 7 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N427FJDornier 328-300
Weather
Visual (VMC) · Night/dark
Status
Completed · report September 30, 2003
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20030424036909A
Case key
56882

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The airplane's encounter with unforecasted clear air turbulence during cruise flight.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherCruise - normal
Weather condition - turbulence,clear airCause

Analysis

During cruise flight at 22,000 feet, the airplane encountered unforecasted clear air turbulence. The flight attendant, who was standing at the time, sustained serious injuries when she was thrown against the bulkhead, then to the floor. Following the turbulence encounter, the airplane continued to its destination and landed uneventfully. A review of the flight release that was issued to the pilots revealed a warning for occasional moderate turbulence below 12,000 feet for an area several hundred miles to the west of the airplane's route of flight. In addition, no SIGMETs or AIRMETs were issued for the Roanoke, Virginia, area.

Factual narrative

On April 24, 2003, about 2235 eastern daylight time, a Fairchild-Dornier 328-300, N427FJ, operated by Atlantic Coast Airlines (ACA) as Delta Connection flight 6262, was not damaged after it encountered turbulence during cruise flight. There were no injuries to the two certificated pilots and five passengers; however, the flight attendant sustained serious injuries. An instrument flight rules (IFR) flight plan had been filed for the flight from Cincinnati/Northern Kentucky International Airport (CVG), Covington, Kentucky, to Roanoke Regional Airport (ROA), Roanoke, Virginia. Visual meteorological conditions prevailed for the flight conducted under 14 CFR Part 121.

According to the captain, the flight was at cruise altitude at 22,000 feet in visual meteorological conditions. The airplane encountered a "light chop," so he kept the fasten-seatbelt sign illuminated. Without warning, the flight encountered "moderate turbulence" for 2 to 5 seconds. There was minimal altitude loss and the autopilot maintained control of the airplane. Following the turbulence encounter, the crew requested from air traffic control clearance to descend to 19,000 feet, where the remainder of the flight was smooth.

The first officer provided a similar account of the events.

In a written statement, the flight attendant stated that "continuous light turbulence" was encountered during the flight. While standing in the galley, the airplane suddenly encountered "severe clear air turbulence," which threw her against the bulkhead. As she regained her balance, the airplane encountered more turbulence, which knocked her to the floor.

The flight continued to Roanoke Regional Airport and landed uneventfully.

A review of the flight release that was issued to the pilots revealed a warning for occasional moderate turbulence below 12,000 feet for an area several hundred miles to the west of the airplane's route of flight. In addition, no SIGMETs or AIRMETs were issued for the Roanoke area.

Aircraft

Registration
N427FJ
Reported as
Dornier 328-300
Category
Airplane
Engine
Pratt & Whitney PW-306B, 6,050 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Operator
Atlantic Coast Airlines, doing business as Delta Connection
Registered owner
First Union National Bank
Airworthiness certificate
Standard, Transport
Departed
CVG · Covington, KY
Destination
ROA · Roanoke, VA
Flight plan
IFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
31
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
March 7, 2003
Seat
Left
Flight hours
3,000 total · 31 in this make and model
Role
Co-pilot
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
November 10, 2002
Seat
Right
Flight hours
2,560 total · 908 in this make and model

Weather

Conditions
Visual (VMC) · Night/dark
Wind
170° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
41 °F, dew point 21 °F
Altimeter
29.93 inHg
Observed at
KROA

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.