Eurocopter AS 350BA, Brooklyn, N.Y., May 4, 2004–The NTSB blamed the crash of Helinet Aviation Services’ WNBC News Chopper 4 on the pilot’s failure to maintain control after a loss of hydraulic system pressure.
For years Corpair Supply of O’Fallon, Mo., has been closely associated with the repair and overhaul of Sabreliners. The company recently announced that it has expanded its capabilities to include Falcons (the 10, 20, 50, 200 and 900) and Hawkers (the 400, 600, 700 and 800).
The FAA has issued an airworthiness directive (AD) for the Eurocopter AS 350B/BA/B1/B2/B3/D and AS 355E Squirrel light helicopters, requiring replacement of the hydraulic fluid at a specified interval when operating in cold weather. The amendment is prompted by reports of ice forming due to condensation in some parts of the hydraulic system.
Beech 1900D, Marlborough, New Zealand, June 18, 2007 – The New Zealand-registered Beech 1900 landed gear up at Woodbourne Air Station after the landing gear system failed. On the ILS approach to Wellington International, the crew did not get a gear-in-transit indicator light after lowering the gear and did not hear the hydraulic pump operating.
Investigations into two accidents involving Eurocopter AS 350A and AS 350B2 helicopters led the NTSB to determine that the hydraulic pump drive belt (P/N 704A33690004) prematurely failed in flight. Additionally, an inquiry into the FAA’s Service Difficulty Report database found that 43 failures and/or replacements of hydraulic pump drive belts with that part number occurred from February 1995 to the present.
Four reported incidents of in-flight loss of hydraulic fluid led to an emergency AD being issued Friday for the 139 in-service Premier Is. None of the incidents led to any mishaps, according to Raytheon Aircraft. The problem has been traced to the failure of a hydraulic tube assembly in the left engine. The directive requires a visual inspection of the affected part before further flight and thereafter at intervals of 50 hours.
Diversified industrial manufacturer Eaton Corp. is showing its range of expertise in the aerospace field here in Paris, highlighting its recent developments in the civil realm, such as a 5,000-psi hydraulic power generation and fluid conveyance system used in the Airbus A380.
U.S. fluid and mechanical systems company Eaton Aerospace has embarked on a buying spree that aimed at doubling its size within five years.
Vice-president sales and marketing Einar Johnson says the acquisitions “must be in line with our strategic goals.” Eaton would, he added, purchase companies that would position it to serve its increasing global customer base.
Eaton (Hall 4 Stand F12) has been selected by Embraer to provide five packages for Embraer’s Phenom 100 very light jet. These include the hydraulic power generation package, design of the aircraft’s flap system and landing gear control hydraulic components. It will also supply miscellaneous cockpit controls including the throttle, landing gear and flap selectors.
Four reported incidents of in-flight loss of hydraulic fluid led to an emergency AD for 139 Premier Is. None of the incidents led to any mishaps. The problem has been traced to the failure of a hydraulic tube assembly in the left engine. The January 20 directive requires a visual inspection of the affected part before further flight and subsequent inspections at intervals of 50 hours.
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