aviation accident: McDonnell Douglas MD 900 near Mesa (2004-09-08)
type: Event
start date: 2004-09-08
location: Mesa, AZ, USA
  type: Place
  geo: GeoCoordinates
    latitude: 33.473056
    longitude: -111.726669
description: Probable cause: fracture of a Tension-Torsion strap in the anti-torque fan due to progressive fiber failure of the composite strap material from compression and/or transverse shear stresses that occurred with repeated manipulation of the cockpit anti-torque control pedals without the fan operating at full rpm. A factor in the accident was the helicopter manufacturer's inadequate fatigue and load testing on the strap.
citation: DigitalDocument
license: https://creativecommons.org/publicdomain/zero/1.0/
source: https://data.ntsb.gov/carol-main-public/basic-search
source organization: US National Transportation Safety Board
publisher: AI Analytics

PropertyValue
property ID: NTSB Case Number
value: LAX04LA333

AI Analytics
type: Organization