United B772 enroute on Feb 10th 2024, severe turbulence injures 16
Last Update: March 13, 2024 / 15:30:36 GMT/Zulu time
Incident Facts
Date of incident
Feb 10, 2024
Classification
Accident
Airline
United
Flight number
UA-1890
Departure
Los Angeles, United States
Destination
Newark, United States
Aircraft Registration
N788UA
Aircraft Type
Boeing 777-200
ICAO Type Designator
B772
The FAA reported: "AIRCRAFT EXPERIENCED SEVERE TURBULENCE INJURYING FLIGHT ATTENDANTS AND PASSENGERS, NEWARK, NJ." and stated three flight attendants and thirteen passengers received minor injuries.
On Mar 13th 2024 the NTSB released their preliminary report suummarizing the sequence of events:
The first officer (FO) was the pilot flying and the captain was the pilot monitoring. The flight crew stated that the departure from LAX was uneventful and the flight leveled off at a cruise altitude of FL350. The FO stated that he was responsible for briefing the approach/arrival into EWR and in preparation for the brief, checked for potential turbulence using the Weather Services International (WSI) application (APP) and used the Skypath APP to see if there were any reports of turbulence. Neither application revealed any significant indications of turbulence along their route. After the brief, the captain turned the onboard weather radar ON for the eventual descent into EWR.
The FO stated that while descending through about FL270, the captain announced via the passenger address (PA) system for the flight attendants (FA) to prepare the cabin for landing. Following the announcement, the captain turned the seatbelt sign ON.
The FO stated that he observed an overcast layer of clouds ahead and below that the flight would penetrate on their descent to EWR. However, there was no indication of potential turbulence as nothing showed on the aircraft's weather radar or the Skypath APP. Additionally, there were no reports of turbulence from ATC or dispatch.
The pilots reported that while descending through about FL210 in instrument meteorological conditions (IMC), the flight encountered moderate turbulence lasting a few seconds that caused unsecured items on the flightdeck to be thrown about. After the event, the captain immediately called the cabin crew and was informed of multiple injuries with one flight attendant sustaining a head laceration. Upon being notified of the injuries, the flight crew declared a medical emergency and requested paramedics meet the aircraft at the gate in EWR. Post-flight, two FA’s were diagnosed with fracture injuries and a third was diagnosed with a sub-cranial bleed.
Postaccident examination of the weather in the area revealed a frontal boundary moving eastward across New York state. In addition, an upper-level jet stream maximum was located above the accident site. Satellite and weather radar imagery, along with lightning and surface data depicted strong cells in the vicinity of the flight. The U.S National Weather Service (NWS) had issued current Significant Meteorological (SIGMET) warning for embedded thunderstorms with tops reaching FL280 over the region.
NTSB group chairs in the areas of air traffic control, operations, meteorology, survival factors, and flight data recorder were assigned. Qualified parties were invited to participate in the investigation. These included the Federal Aviation Administration (FAA), United Airlines, The Boeing Company, Air Line Pilots Association (ALPA), and the National Air Traffic Controllers Association (NATCA).
Certified ADS-B data and audio recordings were provided to the NTSB by the FAA. The NTSB is currently analyzing this data. At the time of the accident, flight 1890 was being controlled by air traffic control located at the Boston Air Route Traffic Control Center (ZBW ARTCC). During the week of March 4th, 2024, the ATC group and meteorology specialist traveled to Nashua, New Hampshire to interview personnel at the control center.
Data from the digital flight data recorder (DFDR) and the cockpit voice recorder (CVR) were sent to the NTSB’s Vehicle Recorder Laboratory in Washington, DC, for analysis.
The investigation continues.
Aircraft Registration Data
Incident Facts
Date of incident
Feb 10, 2024
Classification
Accident
Airline
United
Flight number
UA-1890
Departure
Los Angeles, United States
Destination
Newark, United States
Aircraft Registration
N788UA
Aircraft Type
Boeing 777-200
ICAO Type Designator
B772
This article is published under license from Avherald.com. © of text by Avherald.com.
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