federal_register: E8-18211
Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E8-18211 | Airworthiness Directives; Boeing Model 777 Airplanes | Proposed Rule | We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 777 airplanes. This proposed AD would require doing an inspection of the motor operated valve (MOV) actuators of the main and center fuel tanks for a certain part number; replacing the MOV actuator with a new MOV actuator if necessary; and measuring the electrical resistance of the bond from the adapter plate to the airplane structure, and corrective actions if necessary. This proposed AD would also require revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent electrical current from flowing through a MOV actuator into a fuel tank, which could create a potential ignition source inside the fuel tank. This condition, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. | 2008-08-07 | 2008 | 8 | https://www.federalregister.gov/documents/2008/08/07/E8-18211/airworthiness-directives-boeing-model-777-airplanes | https://www.govinfo.gov/content/pkg/FR-2008-08-07/pdf/E8-18211.pdf | Transportation Department; Federal Aviation Administration | 492,159 | We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 777 airplanes. This proposed AD would require doing an inspection of the motor operated valve (MOV) actuators of the main and center fuel tanks for a certain part number;... |