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NTSB Releases Agenda for Investigative Hearing on Engine Failure
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 NTSB Releases Agenda for Investigative Hearing on Engine Failure

​WASHINGTON (Nov. 13, 2018) — The National Transportation Safety Board is scheduled to hold an investigative hearing, that is open to the public, Wednesday, beginning at 9 a.m. (ET), in the NTSB’s Board Room and Conference Center.

The one-day investigative hearing is part of the agency’s ongoing investigation of the fatal, April 17, 2018, Boeing 737/CFM International fan-blade-out and depressurization accident on Southwest Airlines flight 1380.

The hearing will include 2 panels; CFM56-7B Fan Blades: Design and Certification, Consequences of the Fan Blade Out, Inspection Intervals and Procedures, and B737/CFM56-7B Inlet and Fan Cowl: Design and Certification, Structural Capability following a Fan Blade Out Event.

The agenda for the investigative hearing includes:

  • Opening Statement from the hearing chairman, National Transportation Safety Board Member Bella Dinh-Zarr
  • Panel one, CFM56-7B Fan Blades: Design and Certification, Consequences of the Fan Blade Out, Inspection Intervals and Procedures
  • Panel two, B737/CFM56-7B Inlet and Fan Cowl: Design and Certification, Structural Capability following a Fan Blade Out Event

Witnesses from Boeing, CFM, the Federal Aviation Administration, and Southwest Airlines are expected to provide testimony on the following topics during the first panel:

  • Design of CFM56-7B Fan Blade
  • Certification of CFM56-7B
  • Failure sequence of accident blade
  • Inspection Intervals and Procedures

Witnesses from Boeing, CFM, the Federal Aviation Administration, and United Technologies Aerospace Systems are expected to provide testimony on the following topics during the second panel:

  • Certification of the Inlet and Fan Cowl structure for an FBO event
  • Design, analysis and testing of the Inlet and Fan Cowl structure for an FBO event
  • Structural Capability of the Inlet and Fan Cowl structures following FBO

The full agenda, including a list of witnesses and parties participating in the investigative hearing is available at https://go.usa.gov/xPfBT.

The investigative hearing, which is open to the public, will be webcast and can be accessed at http://ntsb.windrosemedia.com/

The public docket for the investigative hearing is slated to be opened at 8:00 a.m. (EST) Wednesday and once opened can be accessed from the NTSB's website.

Media planning to cover the investigative hearing in person are asked to contact NTSB media relations at 202-314-6100 or keith.holloway@ntsb.gov and to be in place and set up not later than 8:30 a.m. (EST) on the day of the event.

NTSB previously issued an investigative update about the ongoing investigation.

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Contact: NTSB Media Relations
490 L'Enfant Plaza, SW
Washington, DC 20594
Keith Holloway
(202) 314-6100
keith.holloway@ntsb.gov

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