Author Topic: FAILURE: Sea Launch - Intelsat 27 - February 1, 2013 (0656UTC)  (Read 169214 times)

Offline Targeteer

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Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline pargoo

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     Still no launch pics I notice.  Also, they've changed their 'media' page so that all the shots are postage-stamp sized with no captions so you can't even tell which launch you're looking at/for. 

Offline owais.usmani

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Looks like the official verdict is out:

http://ria.ru/science/20130410/931894714.html

Offline anik

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Based on the Ukrainian commission’s schedule of events, a FROB meeting with the Zenit-2S investigators is planned for April 22 through 26, 2013 at the Yuzhnoye and Yuzhmash facilities in the Ukraine.

Offline russianhalo117

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INTELSAT 27

Failure Review Oversight Board
Energia Logistics Ltd. (ELUS) has formed a Failure Review Oversight Board (FROB) to review the contractor findings and agree on root cause and appropriate corrective actions to prevent recurrence.  The FROB will be led by ELUS Chief Operating Officer Kirk Pysher, along with co-chairman Dr. Valery Aliev, ELUS Executive Vice President and Mission Director, and Rick Pudil, ELUS Chief Systems Engineer.

ELUS received a status report from the Ukrainian failure investigation commission, comprised of senior representatives of Yuzhnoye SDO, designer of the two-stage Zenit-2S launch vehicle, Yuzhmash, the Zenit-2S manufacturer, and the National Space Agency of Ukraine (NKAU).  The report demonstrates that the Commission is making progress in the ongoing effort to identify the root cause of the SL-48 failure.  The investigation continues to focus on anomalous performance of the hydraulic power supply (BIM) for  the 1st stage main engine thrust vector control system.  A limited set of possible causes has been established by the Commission along with identified tests and analysis to support or refute each of the candidate causes, and thereby isolate and substantiate the most probable root cause.

The Commission has completed its planned testing and analysis program and issued a final report in April.  It is presently being translated for ELUS review.

ELUS has identified technical consultants to support the FROB review, who each encompass broad knowledge and extensive experience with various aspects of launch vehicle technical and program matters (including prior Sea Launch experience), as well as subject matter expertise.

Based on the Ukrainian Commission’s issuance of a final report, a FROB meeting with the Zenit-2S investigators is planned for April 22-26, 2013 at the Yuzhnoye and Yuzhmash facilities.  In addition, per standard Sea Launch investigation procedure, the FROB is in the process of reviewing all other segments of the Sea Launch system during the SL-48 mission to verify nominal performance and ensure that there were no other contributors to the failure.   The FROB review of the Marine Systems, Payload Unit (PLU), including related systems, and ELUS Operations Support was conducted on April 12, 2013.

http://www.sea-launch.com/missions-q11349-Failure_Review_Oversight_Board.aspx

Offline Prober

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Based on the Ukrainian commission’s schedule of events, a FROB meeting with the Zenit-2S investigators is planned for April 22 through 26, 2013 at the Yuzhnoye and Yuzhmash facilities in the Ukraine.

this should be an interesting report, will it be made available?
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Offline FutureSpaceTourist

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http://www.sea-launch.com/missions-q11349-Failure_Review_Oversight_Board.aspx:

Quote
Failure Review Oversight Board
Following the unsuccessful launch of the SL-48 mission on January 31, 2013, Sea Launch and Energia Logistics Ltd. (ELUS) formed a Failure Review Oversight Board (FROB) to review the contractor findings and agree on root cause and appropriate corrective actions to prevent recurrence.  The FROB is led by ELUS Chief Operating Officer Kirk Pysher, along with Co-chairman Dr. Valery Aliev, ELUS Executive Vice President and Mission Director, and Rick Pudil, ELUS Chief Systems Engineer.

ELUS has secured the participation of various technical consultants to support the FROB review, who encompass broad knowledge and extensive experience with launch vehicle technical and program matters (including prior Sea Launch experience), as well as subject matter expertise.  In addition, customer participants from three global satellite operators participated in the FROB review.
 
On April 25, 2013, the FROB completed its review of investigations into the failed launch attempt. The investigations into the cause of the failure covered the entire Sea Launch complex to ensure all contributors to the failure were properly identified.

The investigations isolated the failure to the Zenit-3SL first stage hydraulic power supply unit (BIM) used to pressurize the RD-171M main engine gimbal actuators.  No additional contributors to the failure were found. The BIM failed approximately 3.9 seconds into the flight due to the abnormal performance of the pump that’s function is to pressurize the hydraulic oil supplied to the RD-171M main engine gimbal actuators. The pump failure was the result of contributing factors associated with a pump manufacturing process that proved difficult to control.

The FROB confirms that the investigation has properly identified the cause of the failure and that the identified corrective actions will eliminate the possibility of recurrence going forward.  Pending implementation of the identified corrective actions, the Sea Launch Zenit 3SL is ready to return to flight.

Online Chris Bergin

Sea Launch:

Sea Launch’s IS 27 FROB Report Finalized

Bern, Switzerland, June 3, 2013 - Sea Launch AG has announced that the Failure Review Oversight Board (FROB) issued its final summary report of findings on May 31, following its review of the investigation into the cause of the January 31, 2013 failed launch attempt of the IS-27 spacecraft.  It had been previously reported that the FROB concluded that the failure was isolated to the Zenit 3SL 1st stage hydraulic power supply unit (BIM) with no other contributors identified. 

Corrective actions are expected to be complete on the existing flight units in the June/July time frame and do not involve any design changes to the flight hardware.  The corrective actions focus on additional standalone inspections and testing of the BIM prior to installation into the Zenit 1st stage engine compartment.

The FROB membership, including independent reviewers and subject matter experts, unanimously concurred with the investigation findings and cleared the Zenit 3SL for return to flight pending closure of the corrective actions, which they affirmed will preclude a similar failure in the future.

Officials representing Sea Launch AG and Energia Logistics Ltd., Sea Launch’s prime technical subcontractor, are now set to travel to present the FROB’s findings to the customer and insurance communities during the month of June.

Kjell Karlsen, president of Sea Launch said, “We are now poised to brief the space community so as to assure all that we are implementing the corrective actions necessary for our success going forward.”  Sergey Gugkaev, chief executive officer of Sea Launch, added, “We wish to express our sincere gratitude to the Investigation Commission participants including RSC Energia, Yuzhnoye SDO, Yuzhmash and the National Space Agency of Ukraine as well as the independent FROB membership team who have done an expert job and who have now positioned us for return to flight operations.”
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Offline Stan Black

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If SL-48 is the Zenit-2S serial, that's quite a jump out of sequence (was expecting SL-36)

http://forum.nasaspaceflight.com/index.php?topic=30213.msg1008275#msg1008275

SL-48 is probably a name of Sea Launch mission.

I tried to compile a cross reference list here
http://forum.nasaspaceflight.com/index.php?topic=22561.msg1076237#msg1076237

Anyone fill in the blanks?

Offline Stan Black

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According to the Energia 2012 Annual report the Zenit for Intelsat-27 was to be powered by РД171М № А168. However that has been seen on the Zenit for Amos-4.

So did they choose a different rocket to launch Intelsat-27?   

http://forum.nasaspaceflight.com/index.php?topic=25577.msg1091165#msg1091165

Offline Danderman

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According to the Energia 2012 Annual report the Zenit for Intelsat-27 was to be powered by РД171М № А168. However that has been seen on the Zenit for Amos-4.

So did they choose a different rocket to launch Intelsat-27?   

http://forum.nasaspaceflight.com/index.php?topic=25577.msg1091165#msg1091165

Are you asking about the rocket or the RD-171M  rocket engine?

Offline Stan Black

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According to the Energia 2012 Annual report the Zenit for Intelsat-27 was to be powered by РД171М № А168. However that has been seen on the Zenit for Amos-4.

So did they choose a different rocket to launch Intelsat-27?   

http://forum.nasaspaceflight.com/index.php?topic=25577.msg1091165#msg1091165

Are you asking about the rocket or the RD-171M  rocket engine?


The rocket; did they choose a different rocket to launch Intelsat-27?

Quote
The Zenit-2SB first and second stages used on Land Launch are similar to the Zenit-2S first and second stages used on Sea Launch.
Land Launch User’s Guide, Revision 1, March 2012

Sea Launch SL32 was converted to a Land Launch rocket.
http://forum.nasaspaceflight.com/index.php?topic=28096.msg910022#msg910022

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