NTSB Safety Recommendations A-08-75 and -76

National Transportation Safety Board
Washington, DC 20594
September 30, 2008

The National Transportation Safety Board recommends that the Federal Aviation Administration:
Require Eurocopter to identify AS-350 and EC-130 helicopter hydraulic pump drive shafts and coupling sleeves with splines that do not meet design specifications and take appropriate action to ensure that these parts (that is, replacement parts and parts to be installed in new helicopters) are expeditiously removed from the supply chain. (A-08-75)

Require operators of Eurocopter AS-350 and EC-130 helicopters to perform a wear check, visual inspection, and lubrication of the hydraulic power assembly splines and coupling sleeve splines in accordance with the latest version of the maintenance manual at the earliest opportunity, and, thereafter, require operators to repeat the wear check, visual inspection, and lubrication of thesplined connection at 100-hour intervals, and remove unairworthy parts from service. (A-08-76)

http://ntsb.gov/Recs/letters/2008/A08_75_76.pdf
Fonte: NTSB 30/09/2008.