Airworthiness Directives; Boeing Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F, and 747SR Series Airplanes
type: Action
additional type: https://schema.org/LegalForceStatus
description: We are adopting a new airworthiness directive (AD) for certain Boeing Model 747 airplanes identified above. This AD requires replacing the inboard trailing edge (TE) flap transmission carbon disk no-back brakes with skewed roller no-back brakes at the TE flap transmission, positions 4 and 5. This AD results from reports of the inboard TE flaps blowing back due to the failure of a transmission carbon disk no-back brake. The no-back brake did not hold the TE flaps in the commanded position. We are issuing this AD to prevent a decrease of the aerodynamic controllability of the airplane, which could adversely affect the airplane's continued safe flight and landing.
date published: 2009-10-01
start time: 2009-11-05
agent: Federal Aviation Administration
  type: GovernmentOrganization
  parent organization: US Department of Transportation
citation: DigitalDocument
license: https://creativecommons.org/publicdomain/zero/1.0/
source: https://www.federalregister.gov/documents/2009/10/01/E9-23555/airworthiness-directives-boeing-model-747-100--100b--100b-sud--200b--200c--200f--300--400--400d
source organization: US Federal Register
publisher: AI Analytics

PropertyValue
property ID: Federal Register Document Number
value: E9-23555

PropertyValue
property ID: Federal Register Citation
value: 74 FR 50686

PropertyValue
property ID: FAA Docket
value: Docket No. FAA-2009-0293

AI Analytics
type: Organization