federal_register: 2017-19250

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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
2017-19250 Airworthiness Directives; General Electric Company Turbofan Engines Proposed Rule We propose to adopt a new airworthiness directive (AD) for all General Electric Company (GE) CF6-80A, -80A1, -80A2, and -80A3 turbofan engines. This proposed AD was prompted by high cycle fatigue (HCF) cracking of the low-pressure turbine (LPT) stage 3 nozzles. This proposed AD would require replacement of the LPT stage 3 nozzles. We are proposing this AD to address the unsafe condition on these products. 2017-09-12 2017 9 https://www.federalregister.gov/documents/2017/09/12/2017-19250/airworthiness-directives-general-electric-company-turbofan-engines https://www.govinfo.gov/content/pkg/FR-2017-09-12/pdf/2017-19250.pdf Transportation Department; Federal Aviation Administration 492,159 We propose to adopt a new airworthiness directive (AD) for all General Electric Company (GE) CF6-80A, -80A1, -80A2, and -80A3 turbofan engines. This proposed AD was prompted by high cycle fatigue (HCF) cracking of the low-pressure turbine (LPT) stage 3...  

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