federal_register: 2010-7283

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document_number title type abstract publication_date pub_year pub_month html_url pdf_url agency_names agency_ids excerpts regulation_id_numbers
2010-7283 Airworthiness Directives; Rolls-Royce plc RB211-Trent 700 Series Turbofan Engines Rule The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce plc RB211-Trent 700 series turbofan engines. That AD currently requires initial and repetitive borescope inspections of the high-pressure-and-intermediate pressure (HP-IP) turbine internal and external oil vent tubes for coking and carbon buildup, and cleaning or replacing the vent tubes if necessary. This AD requires the same actions, but adds additional inspections of the vent flow restrictor. This AD results from further analysis that the cleaning of the vent tubes required by AD 2007-02-05 could lead to loosened carbon fragments, causing a blockage downstream in the vent flow restrictor. We are issuing this AD to prevent internal oil fires due to coking and carbon buildup that could cause uncontained engine failure and damage to the airplane. 2010-04-02 2010 4 https://www.federalregister.gov/documents/2010/04/02/2010-7283/airworthiness-directives-rolls-royce-plc-rb211-trent-700-series-turbofan-engines https://www.govinfo.gov/content/pkg/FR-2010-04-02/pdf/2010-7283.pdf Transportation Department; Federal Aviation Administration 492,159 The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce plc RB211-Trent 700 series turbofan engines. That AD currently requires initial and repetitive borescope inspections of the high-pressure-and-intermediate pressure (HP-IP)...  

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