federal_register: 2021-24956

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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
2021-24956 Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters Proposed Rule The FAA proposes to adopt a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation Model S-76D helicopters. This proposed AD was prompted by reports that certain Thales global positioning system (GPS) satellite based augmentation system (SBAS) receivers provided, under certain conditions, erroneous outputs on aircraft positions. This proposed AD would require replacing affected GPS receivers and prohibit installing those GPS receivers. The FAA is proposing this AD to address the unsafe condition on these products. 2021-11-16 2021 11 https://www.federalregister.gov/documents/2021/11/16/2021-24956/airworthiness-directives-sikorsky-aircraft-corporation-helicopters https://www.govinfo.gov/content/pkg/FR-2021-11-16/pdf/2021-24956.pdf Transportation Department; Federal Aviation Administration 492,159 The FAA proposes to adopt a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation Model S-76D helicopters. This proposed AD was prompted by reports that certain Thales global positioning system (GPS) satellite based augmentation... 2120-AA64

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