# NTSB NYC06LA016: Boeing 737-832, N378DA, Atlantic Ocean (Atlantic Ocean), October 22, 2005 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: October 22, 2005, 14:40 local (18:40 UTC) - Place: Atlantic Ocean (Atlantic Ocean) - Coordinates: 37.635696, -72.860801 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.6357&lon=-72.8608&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious, 2 minor, 147 uninjured - Status: Completed, report October 3, 2006 - Report: Approved by Office Director - Parties: FAA FSDO-01 - NTSB case key (mKey): 62719 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC06LA016 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62719/pdf - Page: https://openairdocs.org/ntsb/NYC06LA016 ## Probable cause An encounter with turbulence during cruise flight. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight encounter with weather, cruise - normal - weather condition - turbulence (cause) ## Analysis Light turbulence prevailed during the climb after takeoff, and the seatbelt sign remained illuminated. About 230 miles northwest of the departure airport, at 34,000 feet, the turbulence subsided; however, more turbulence was forecasted for about 150 miles ahead of the airplane. The captain announced to the passengers that the seatbelt sign would be turned off for 10 minutes to allow them an opportunity to move about the cabin, but would be turned on again due to the upcoming turbulence. About 3 minutes after turning the seatbelt sign back on, the airplane encountered moderate turbulence. During that time, two passengers fell as they were attempting to sit down. In addition, a flight attendant fell to the floor as she was attempting to sit, and fractured her pelvis. ## Factual narrative On October 22, 2005, about 1440 eastern daylight time, a Boeing 737-832, N378DA, operated by Delta Air Lines Inc., as flight 612, was not damaged during an encounter with turbulence in cruise flight about 300 miles northwest of Hamilton, Bermuda. There were no injuries to the 2 certificated airline transport pilots, 2 flight attendants, and 143 passengers; while 1 flight attendant was seriously injured, and 2 passengers sustained minor injuries. Visual meteorological conditions prevailed for the flight that departed Hamilton, Bermuda; destined for General Edward Lawrence Logan International Airport (BOS), Boston, Massachusetts. An instrument flight rules flight plan was filed for the air carrier flight conducted under 14 CFR Part 121. The flightcrew reported that light turbulence prevailed during the climb from Bermuda, and the seatbelt sign remained illuminated. About 230 miles northwest of Bermuda, at 34,000 feet, the turbulence subsided; however, more turbulence was forecasted for about 150 miles ahead of the airplane. The captain announced to the passengers that the seatbelt sign would be turned off for 10 minutes to allow them an opportunity to move about the cabin, but would be turned on again due to the upcoming turbulence. The captain also decided against meal service due to the anticipated turbulence after 10 minutes. About 300 miles northwest of Bermuda, the captain turned the seatbelt sign back on. About 3 minutes later, the airplane encountered moderate turbulence. During that time, two passengers and a flight attendant fell as they were attempting to sit down. The passengers sustained minor injuries, and the flight attendant fractured her pelvis. The flight subsequently landed uneventfully at BOS, and was met by medical personnel. ## Aircraft - Registration: [N378DA](https://openairdocs.org/aircraft/N378DA), registered now, S/N 30265, built 1999 (OpenAirDocs) - Reported make and model: Boeing 737-832 - Registry model: [Boeing 737-832](https://openairdocs.org/model/boeing-737-832) (registry code 13844CF) (OpenAirDocs) - Registry engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802, turbo-fan) (OpenAirDocs) - Category: Airplane - Serial number: 29624 - Airframe hours: 19800 - Engines: Snecma CFM56-7B26 26000 lbs thrust turbo fan; Snecma CFM56-7B26 26000 lbs thrust turbo fan - Damage: No damage - Flight: Part 121 - Registered owner: Delta Air Lines Inc - Airworthiness certificate: Standard, Transport - Last inspection: Continuous airworthiness, October 1, 2005, 30 hours before - Departed: BDA, Hamilton - Destination: BOS, Boston, MA - Flight plan: IFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 47; injuries: none; airline transport; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review June 1, 2006; seat: left; flight hours: 14,230 total, 1,950 in this make and model, 200 in the last 90 days, 5 in the last 24 hours - Co-pilot; age 36; injuries: none; airline transport, flight engineer; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review February 1, 2005; seat: right; flight hours: 9,352 total, 3,263 in this make and model, 185 in the last 90 days, 5 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 50° at 14 knots - Visibility: 10 statute miles - Lowest ceiling: 3,900 ft broken - Temperature: 48 °F, dew point 43 °F - Altimeter: 29.87 inHg - Observed at: BOS, 500 nm away ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20051022031479A](https://openairdocs.org/incident/20051022031479A), Oct 22, 2005: Boeing 737832, Hamilton, BD. (-23) Delta 612, B737, enroute from bermuda to boston, MA, pilot reported to it's operations that they experienced moderate turbulance 70 miles prior to aydna… ## Other investigations on N378DA (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA11CA296](https://openairdocs.org/ntsb/ERA11CA296), May 12, 2011: Boeing 737-832 (N378DA), Atlanta, GA, substantial damage. Probable cause: The B737-700 pilot did not maintain adequate wing tip clearance while taxiing around the stopped B-737-800. From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.