United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2005_register executive 2010-09-23 article Proposed Rules D09002ee1c810a6f8 D09002ee1c810a795 United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Aviation Administration originator org United States Government Agency or Subagency The FAA proposes to supersede an existing airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. That AD currently requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further flight. That AD also requires replacing the fuel nozzle with a new design fuel nozzle, at the next fuel nozzle overhaul or by June 30, 2006, whichever occurs first. This proposed AD would require the same actions, but would add additional part numbers (P/Ns) to the list of affected fuel nozzles. This proposed AD would also explain that the existing AD, as worded, allows certain part number (P/N) fuel nozzles back into service. Those fuel nozzles must not be allowed back into service. This proposed AD results from the discovery that several P/Ns of fuel nozzles were inadvertently left out of AD 2004-24-09. We are proposing this AD to minimize the risk of sudden loss of engine power and uncommanded shutdown of the engine due to fuel contamination and collapse of the screen in the fuel nozzle. 70 FR 60453 https://www.govinfo.gov/app/details/FR-2005-10-18/05-20779 05-20779 fr18oc05-13 RIN 2120-AA64 4910-13-P Docket No. 2004-NE-10-AD https://www.govinfo.gov/app/details/FR-2005-10-18/05-20779 https://www.govinfo.gov/content/pkg/FR-2005-10-18/html/05-20779.htm https://www.govinfo.gov/content/pkg/FR-2005-10-18/pdf/05-20779.pdf Air Transportation Aircraft Aviation Safety Safety 4 p. 60453 60456 70 FR 60453 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines; Federal Register Vol. 70, Issue PRORULE 05-20779 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2005-12-19 Docket No. 2004-NE-10-AD 4910-13-P 05-20779 Notice of proposed rulemaking (NPRM).

The FAA proposes to supersede an existing airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. That AD currently requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further flight. That AD also requires replacing the fuel nozzle with a new design fuel nozzle, at the next fuel nozzle overhaul or by June 30, 2006, whichever occurs first. This proposed AD would require the same actions, but would add additional part numbers (P/Ns) to the list of affected fuel nozzles. This proposed AD would also explain that the existing AD, as worded, allows certain part number (P/N) fuel nozzles back into service. Those fuel nozzles must not be allowed back into service. This proposed AD results from the discovery that several P/Ns of fuel nozzles were inadvertently left out of AD 2004-24-09. We are proposing this AD to minimize the risk of sudden loss of engine power and uncommanded shutdown of the engine due to fuel contamination and collapse of the screen in the fuel nozzle.

We must receive any comments on this proposed AD by December 19, 2005. John Tallarovic, Aerospace Engineer, Chicago Aircraft Certification Office, FAA, 2300 East Devon Avenue, Des Plaines, IL 60018-4696; telephone (847) 294-8180; fax (847) 294-7834. Air Transportation Aircraft Aviation Safety Safety Airworthiness directives: Rolls-Royce Corp., 9-ane-adcomment@faa.gov Vol. 70, no. 200 Office of the Federal Register, National Archives and Records Administration 2005-10-18 continuing daily deposited born digital 322 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2005-10-18 P0b002ee180993367 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr18oc05 https://www.govinfo.gov/app/details/FR-2005-10-18 https://www.govinfo.gov/content/pkg/FR-2005-10-18/pdf/FR-2005-10-18.pdf https://www.govinfo.gov/content/pkg/FR-2005-10-18/xml/FR-2005-10-18.xml fdlp 60405 60714 DGPO 2010-09-23 2024-06-06 FR-2005-10-18 machine generated eng FR FR-2005-10-18 70 200