federal_register: 2014-06010

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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
2014-06010 Airworthiness Directives; Dowty Propellers Constant Speed Propellers Proposed Rule We propose to revise airworthiness directive (AD) 2010-17- 11R1, which applies to all Dowty Propellers R408/6-123-F/17 model propellers. AD 2010-17-11R1 requires initial and repetitive application of sealant between the bus bar assembly and the backplate assembly of certain line-replaceable units (LRUs). That AD also provides an optional terminating action to the repetitive re-application of sealant. This proposed AD would increase the interval allowed between the required re-application of sealant, and would specify an additional acceptable sealant. We are proposing this AD to prevent an in-flight double generator failure, which could result in reduced control of the airplane. 2014-03-19 2014 3 https://www.federalregister.gov/documents/2014/03/19/2014-06010/airworthiness-directives-dowty-propellers-constant-speed-propellers https://www.govinfo.gov/content/pkg/FR-2014-03-19/pdf/2014-06010.pdf Transportation Department; Federal Aviation Administration 492,159 We propose to revise airworthiness directive (AD) 2010-17- 11R1, which applies to all Dowty Propellers R408/6-123-F/17 model propellers. AD 2010-17-11R1 requires initial and repetitive application of sealant between the bus bar assembly and the... 2120-AA64

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