Airworthiness Directives; The Boeing Company Model 747-400 and -400F Series Airplanes
type: Action
additional type: https://schema.org/LegalForceStatus
description: We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires a general visual inspection for cracks and holes of the main equipment center (MEC) drip shields, and repairs if necessary; installation of a fiberglass reinforcing overcoat; and, for certain airplanes, installation of stiffening panels to the MEC drip shields. This AD was prompted by a report of a loss of bus control unit number 1 and generator control units numbers 1 and 2 while the airplane was on the ground, and multiple operator reports of cracked MEC drip shields. We are issuing this AD to prevent water penetration into the MEC, which could result in the loss of flight critical systems.
date published: 2011-08-05
start time: 2011-09-09
agent: Federal Aviation Administration
  type: GovernmentOrganization
  parent organization: US Department of Transportation
object: The Boeing Company Model 747-400 and -400F Series
citation: DigitalDocument
license: https://creativecommons.org/publicdomain/zero/1.0/
source: https://www.federalregister.gov/documents/2011/08/05/2011-19828/airworthiness-directives-the-boeing-company-model-747-400-and--400f-series-airplanes
source organization: US Federal Register
publisher: AI Analytics

PropertyValue
property ID: Federal Register Document Number
value: 2011-19828

PropertyValue
property ID: Federal Register Citation
value: 76 FR 47427

PropertyValue
property ID: FAA Docket
value: Docket No. FAA-2011-0041

AI Analytics
type: Organization