federal_register: E8-29257
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E8-29257 | Airworthiness Directives; Boeing Model 707 Airplanes and Model 720 and 720B Series Airplanes | Proposed Rule | We are revising an earlier proposed airworthiness directive (AD) for all Boeing Model 707 airplanes and Model 720 and 720B series airplanes. The original NPRM would have required performing an operational test of the engine fuel suction feed of the fuel system, and other related testing if necessary. The original NPRM resulted from a report of in-service occurrences of loss of fuel system suction feed capability, followed by total loss of pressure of the fuel feed system. This action revises the original NPRM by reducing the compliance time for low-utilization airplanes, and including corrective actions that were inadvertently omitted from certain sections. The corrective actions are replacing the o-rings if any leakage is found in the couplings, and replacing the fuel line if any leakage is found in the fuel line. We are proposing this supplemental NPRM to detect and correct failure of the engine fuel suction feed capability of the fuel system, which could result in multi-engine flameout, inability to restart the engines, and consequent forced landing of the airplane. | 2008-12-10 | 2008 | 12 | https://www.federalregister.gov/documents/2008/12/10/E8-29257/airworthiness-directives-boeing-model-707-airplanes-and-model-720-and-720b-series-airplanes | https://www.govinfo.gov/content/pkg/FR-2008-12-10/pdf/E8-29257.pdf | Transportation Department; Federal Aviation Administration | 492,159 | We are revising an earlier proposed airworthiness directive (AD) for all Boeing Model 707 airplanes and Model 720 and 720B series airplanes. The original NPRM would have required performing an operational test of the engine fuel suction feed of the... |