DCA11CA070

NTSB accident investigation · De Havilland DHC8 · Baltimore, MD · May 16, 2011

Accident · Serious injuriesData collectionFinal report
Date
May 16, 2011, 18:30 local (22:30 UTC)
Place
Baltimore, MD
Injuries
1 serious, 3 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N351NGDe Havilland DHC8
Defining event
Enroute-descent: Turbulence encounter
Weather
Not reported
Status
Completed · report June 18, 2018
Report
Approved by Office Director
NTSB office
Major Investigations Division
FAA report
20110516012309A
Case key
80775

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

On this page

Probable cause

an inadvertent encounter with clear air turbulence.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Turbulence: clear air turbulenceEnvironmental issues › Conditions/weather/phenomena · Effect on personnelBombardier DHC-8-402: 1 caseAll aircraft: 78 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

On May 16, 2011, at about 1830 eastern daylight time, Pinnacle Airlines flight 3621, a DHC-8-402, N351NG, encountered severe turbulence while descending through about 14,000 feet while on initial approach to Ronald Regan National Airport (KDCA), Washington, District of Columbia. One flight attendant received a serious injury and the airplane was not damaged. The flight was operating under 14 CFR Part 121 as a regularly scheduled passenger flight from Newark International Airport (KEWR), Newark, New Jersey to KDCA. According to the operator, the flight crew had not received any PIREPS or NOTAMS of forecasted turbulence and the flight attendants (FAs) had just stowed the galley service carts when the turbulence was encountered. One FA was thrown to the floor injuring her foot. The flight attendant was assisted to a passenger seat where ice was administered to her swollen foot. Paramedics met the flight upon landing and transported the injured flight attendant to the hospital where she was diagnosed with a fracture in her right foot.

Factual narrative

On May 16, 2011, at about 1830 eastern daylight time, Pinnacle Airlines flight 3621, a DHC-8-402, N351NG, encountered severe turbulence while descending through about 14,000 feet while on initial approach to Ronald Regan National Airport (KDCA), Washington, District of Columbia. One flight attendant received a serious injury and the airplane was not damaged. The flight was operating under 14 CFR Part 121 as a regularly scheduled passenger flight from Newark International Airport (KEWR), Newark, New Jersey to KDCA. According to the operator, the flight crew had not received any PIREPS or NOTAMS of forecasted turbulence and the flight attendants (FAs) had just stowed the galley service carts when the turbulence was encountered. One FA was thrown to the floor injuring her foot. The flight attendant was assisted to a passenger seat where ice was administered to her swollen foot. Paramedics met the flight upon landing and transported the injured flight attendant to the hospital where she was diagnosed with a fracture in her right foot.

Aircraft

Registration
N351NG
Reported as
De Havilland DHC8 (402)
Category
Airplane
Serial number
4351
Engines
Pratt and Whitney PW 150A, 7,000 horsepower, turbo propPratt and Whitney PW 150A, 7,000 horsepower, turbo prop
Damage
No damage
Flight
Part 121
Operator
Colgan Air Inc
Registered owner
Colgan Air Inc
Airworthiness certificate
Standard, Transport
Departed
EWR · Newark, NJ
Destination
DCA · Washington, DC
Flight plan
IFR
Equipment
Stall warning system

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
35
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
April 26, 2011
Seat
Left
Flight hours
1,711 in this make and model
Role
Co-pilot
Age
31
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
March 7, 2011
Seat
Right
Flight hours
275 in this make and model

Weather

Conditions
Not reported
Lowest ceiling
None
Turbulence
Moderate

Docket · 1

The files NTSB released with the investigation on June 20, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 229 KB in all.

FAA reports on this event · 1

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