Zenit failure blamed on faulty hydraulic pump
Posted: Fri, May 3, 2013, 7:55 AM ET (1155 GMT)
The failure of a Sea Launch Zenit-3SL rocket earlier this year has been traced back to a faulty hydraulic pump in the rocket's first stage, the company recently announced. The Zenit-3SL failed 40 seconds after liftoff on February 1, resulting in the loss of its Intelsat-27 satellite payload. Investigators said a hydraulic pump used to pressurize oil used by the main engine gimbal actuators failed 3.9 seconds into the flight, leading to a loss of control of the vehicle and an emergency engine shutdown. Investigators blamed the pump failure on "contributing factors associated with a pump manufacturing process that proved difficult to control." That problem, Sea Launch officials said, should be straightforward to address, but they did not specify when they believed the rocket would return to flight.
The failure of a Sea Launch Zenit-3SL rocket earlier this year has been traced back to a faulty hydraulic pump in the rocket's first stage, the company recently announced. The Zenit-3SL failed 40 seconds after liftoff on February 1, resulting in the loss of its Intelsat-27 satellite payload. Investigators said a hydraulic pump used to pressurize oil used by the main engine gimbal actuators failed 3.9 seconds into the flight, leading to a loss of control of the vehicle and an emergency engine shutdown. Investigators blamed the pump failure on "contributing factors associated with a pump manufacturing process that proved difficult to control." That problem, Sea Launch officials said, should be straightforward to address, but they did not specify when they believed the rocket would return to flight.| <<previous article | next article>> |
|
news in brief
|
|
|
|
news links
|
|
Tuesday, June 9
Irish company secures €1 million contract with European Space Agency
Irish Times — 5:52 am ET (0952 GMT) USSF Seeking Small, Medium-Launch Providers At Vandenberg
Aviation Week — 5:49 am ET (0949 GMT) Virgin Galactic’s Shares Take Wild Ride
Orange County (CA) Business Journal — 5:47 am ET (0947 GMT) How Elon Musk’s Friendship With the F.C.C. Smooths the Way for SpaceX’s I.P.O.
New York Times — 5:46 am ET (0946 GMT) SpaceX IPO Is Well Oversubscribed With $10 Billion Orders
Bloomberg News — 5:45 am ET (0945 GMT) |
