- Date
- April 3, 2010, 06:38 local (11:38 UTC)
- Place
- Runnells, IA
- Injuries
- 1 serious, 29 uninjured
- Damage
- No damage
- Phase of flight
- Enroute
- Aircraft
- N869RWEmbraer ERJ 170-100 SE
- Defining event
- Enroute-cruise: Clear air turbulence encounter
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 12, 2010
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- Republic Airlines, Federal Aviation Administration - Milwaukee FSDO
- FAA report
- 20100403031959A
- Case key
- 75649
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
A clear air turbulence encounter during cruise flight, during which an unrestrained cabin flight attendant sustained a hip fracture.
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.
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
The flight crew had been advised by air traffic control that there were multiple reports of light-to-moderate turbulence along the intended route of flight. While in cruise flight at 31,000 feet, the captain noted a change in wind direction and speed and subsequently asked the cabin flight attendants to be seated. Shortly after the captain's request, the airplane encountered moderate turbulence before the flight attendants were able to fasten their lap belts. One of the flight attendants was thrown from her seat and sustained a hip fracture and a head contusion. According to flight recorder data, the maximum and minimum vertical accelerations during the turbulence event were 1.902 g and -0.199 g, respectively. The flight continued to its intended destination without further incident. The flight was met by paramedics who transported the injured flight attendant to a local hospital for treatment.
Factual narrative
On April 3, 2010, at 0638 central daylight time, an Embraer ERJ 170-100 SE, N869RW, operated as Republic Airlines Flight 1501, encountered moderate clear-air turbulence while in cruise flight at 31,000 feet (FL 310) over Runnells, Iowa. A cabin flight attendant, who was seated but unrestrained, sustained a hip fracture and a head contusion during the turbulence encounter. The commercial flight was being operated under the provisions of 14 Code of Federal Regulations (CFR) Part 121 while on an instrument flight plan. The remaining flight crewmembers and 26 passengers were not injured. The flight departed Eppley Field (KOMA), Omaha, Nebraska, at 0540 and was enroute to General Mitchell International Airport (KMKE), Milwaukee, Wisconsin. According to Republic Airlines, air traffic control had issued multiple advisories for light-to-moderate turbulence during the accident flight. The flight encountered light-to-moderate turbulence between 29,000 feet and its assigned cruise altitude of 31,000 feet. While in cruise flight, the captain noted a change in wind direction/speed and subsequently asked the cabin flight attendants to be seated. Shortly after the captain’s request, the airplane encountered moderate turbulence before the flight attendants were able to fasten their lap belts. The injured flight attendant was thrown from her seat and sustained a hip fracture and a head contusion. According to flight recorder data, the maximum and minimum vertical accelerations during the turbulence event were 1.902 g and -0.199 g, respectively. The flight continued to its intended destination without further incident. The flight was met by paramedics who transported the injured flight attendant to a local hospital for treatment.
Aircraft
- Registration
- N869RW
- Reported as
- Embraer ERJ 170-100 SE
- Category
- Airplane
- Serial number
- 17000133
- Airframe hours
- 9,495
- Engines
- General Electric CF34-8E5, 14,510 lbs thrust, turbo fanGeneral Electric CF34-8E5, 14,510 lbs thrust, turbo fan
- Damage
- No damage
- Flight
- Part 121
- Operator
- Republic Airlines, doing business as Midwest Airlines
- Registered owner
- Shuttle America Airlines
- Airworthiness certificate
- Standard, Transport
- Last inspection
- Continuous airworthiness · February 21, 2010
- Departed
- KOMA · Omaha, NE
- Destination
- KMKE · Milwaukee, WI
- Flight plan
- IFR
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 37
- Injuries
- None
- Certificates
- Commercial, Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, With waivers/limitations
- Last flight review
- September 1, 2009
- Seat
- Left
- Flight hours
- 7,500 total · 2,500 in this make and model
- Role
- Co-pilot
- Age
- 30
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Without waivers/limitations
- Last flight review
- January 18, 2010
- Seat
- Right
- Flight hours
- 2,650 total · 1,200 in this make and model · 800 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 220° at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 37 °F, dew point 30 °F
- Altimeter
- 29.78 inHg
- Observed at
- KDSM, 14 nm away
Docket · 1
The files NTSB released with the investigation on May 26, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB 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.