{"database": "openregs", "table": "federal_register", "rows": [["2012-6952", "Airworthiness Directives; Pratt & Whitney (PW)Turbofan Engines", "Rule", "We are adopting a new airworthiness directive (AD) for PW JT9D-7R4G2 and -7R4H1 turbofan engines. This AD was prompted by the determination that a new lower life limit for high-pressure turbine (HPT) 1st stage air seals, part number (P/N) 735907, is necessary. This AD establishes a new lower life limit for HPT 1st stage air seals, P/N 735907, and requires removing them from service using a drawdown schedule. We are issuing this AD to prevent critical life-limited rotating engine part failure and damage to the airplane.", "2012-03-23", 2012, 3, "https://www.federalregister.gov/documents/2012/03/23/2012-6952/airworthiness-directives-pratt-and-whitney-pwturbofan-engines", "https://www.govinfo.gov/content/pkg/FR-2012-03-23/pdf/2012-6952.pdf", "Transportation Department; Federal Aviation Administration", "492,159", "We are adopting a new airworthiness directive (AD) for PW JT9D-7R4G2 and -7R4H1 turbofan engines. This AD was prompted by the determination that a new lower life limit for high-pressure turbine (HPT) 1st stage air seals, part number (P/N) 735907, is...", null]], "columns": ["document_number", "title", "type", "abstract", "publication_date", "pub_year", "pub_month", "html_url", "pdf_url", "agency_names", "agency_ids", "excerpts", "regulation_id_numbers"], "primary_keys": ["document_number"], "primary_key_values": ["2012-6952"], "units": {}, "query_ms": 0.3833870869129896, "source": "Federal Register API & Regulations.gov API", "source_url": "https://www.federalregister.gov/developers/api/v1", "license": "Public Domain (U.S. Government data)", "license_url": "https://www.regulations.gov/faq"}