federal_register: 2018-21694

All Federal Register documents (rules, proposed rules, notices, presidential documents) from 1994 to present. Nearly 1M documents with full-text search.

Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API

This data as json

document_number title type abstract publication_date pub_year pub_month html_url pdf_url agency_names agency_ids excerpts regulation_id_numbers
2018-21694 Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines Proposed Rule We propose to adopt a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This proposed AD was prompted by an in-flight failure of a 1st stage low-pressure compressor (LPC) blade. This proposed AD would require initial and repetitive thermal acoustic imaging (TAI) inspections for cracks in certain 1st stage LPC blades and removal of those blades that fail inspection. We are proposing this AD to address the unsafe condition on these products. 2018-10-10 2018 10 https://www.federalregister.gov/documents/2018/10/10/2018-21694/airworthiness-directives-pratt-and-whitney-division-pw-turbofan-engines https://www.govinfo.gov/content/pkg/FR-2018-10-10/pdf/2018-21694.pdf Transportation Department; Federal Aviation Administration 492,159 We propose to adopt a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This proposed AD was prompted by an in-flight failure of a 1st stage... 2120-AA64

Links from other tables