federal_register: 2012-5372

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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
2012-5372 Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines Rule We are revising an existing airworthiness directive (AD) for TAE models TAE 125-01 and TAE 125-02-99 reciprocating engines installed on, but not limited to, Diamond Aircraft Industries Model DA 42 airplanes. That AD currently requires initial and repetitive replacements of proportional pressure reducing valves (PPRVs) (also known as propeller control valves). This new AD relaxes the repetitive replacement interval from a 300-hour interval to a 600-hour interval for PPRVs, P/N 05-7212-E002801, on TAE 125-02-99 engine. This AD was prompted by TAE increasing the life of the PPRV, part number (P/N) 05- 7212-E002801, on TAE 125-02-99 engines from 300 to 600 hours. We are issuing this AD to prevent engine in-flight shutdown, possibly resulting in reduced control of the aircraft. 2012-03-07 2012 3 https://www.federalregister.gov/documents/2012/03/07/2012-5372/airworthiness-directives-thielert-aircraft-engines-gmbh-tae-reciprocating-engines https://www.govinfo.gov/content/pkg/FR-2012-03-07/pdf/2012-5372.pdf Transportation Department; Federal Aviation Administration 492,159 We are revising an existing airworthiness directive (AD) for TAE models TAE 125-01 and TAE 125-02-99 reciprocating engines installed on, but not limited to, Diamond Aircraft Industries Model DA 42 airplanes. That AD currently requires initial and... 2120-AA64

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