Tag: Russia

Practically every Russian Proton rocket engine defective

4:36 pm

The investigation of the Russian supply of rocket engines for its Proton rocket has discovered that practically every engine, numbering over seventy, had defects that needed repair.

71 engines, mostly used to power the second and third stages of the Proton rocket, require complete overhauls to remove defects. Arbuzov did not specify what was wrong with the engines. In January, Interfax reported on an investigation into high-quality metals swapped by a plant manager for cheaper alternatives. “Most of the work will be done in 2017, but we understand that some portion will inevitably slip into 2018,” Arbuzov said. “Our main goal is to avoid disrupting the government space program’s launch schedule, or the schedules of the Defense Ministry and commercial customers.”

There is also the possibility that these defects will be found in Soyuz rocket engines as well. Stay tuned.

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Next Proton launch tentatively set for May

9:05 am

The Russians have tentatively scheduled their next Proton launch for May, contingent on the repair work being done on the rocket’s engines.

The engine repairs are required because of corruption in the factory that made them. Previously, the Russians had hoped to get Proton off the ground by April. That is no longer likely.

The link above includes a manifest of Russian launches through next year. Interestingly, it only includes three commercial launches. A quick review of the launches listed at this site only includes another three or so commercial launches much farther in the future. All in all, it appears that the Russians are getting less business for this rocket. I also suspect this will remain the case until they get things fixed and begin launching again, though they will need to cut their prices significantly to match SpaceX’s.

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More problems for Russian ISS module

10:37 pm

A Russian module intended for ISS, delayed for years because of technical problems, appears to have more issues that could delay it further, and might even prevent its launch entirely.

As its original 2007 launch date came and went, more and more delays pushed back the MLM’s launch. Then, in 2013, engineers discovered a leaking fueling valve as well as contamination in the propulsion system. At the time, reports said repairs and cleanup would take nearly 10 months.

Those months stretched into years. During the last four years, engineers have been working diligently replacing a jungle of pipelines, valves, and thrusters—part of Nauka’s sophisticated propulsion system—in an effort to get rid of the sawdust contamination introduced during botched upgrades. Because the spacecraft has stayed earthbound much longer than intended, parts of Nauka have also slipped out of warranty.

Fighting off political and logistical concerns surrounding the project—as well suggestions that they ground the MLM entirely until it can serve as the first module of Russia’s own space station—the tedious cleanup and repair effort entered its final phase this year, and the module finally appeared on track for launch at the end of this year or, at the very latest, the first half of 2018.

Then things went from bad to worse. In the past few weeks, engineers found the same contamination they’ve been fighting for years inside the module’s propellant tanks. The repair team tried to wash off these contaminants, but so far all efforts to cleanse the vessels have failed.

Read the whole article. The situation is not good.

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Russia puts four engineers on trial for Proton launch failure

8:54 am

Russia has begun the criminal trial of four engineers for their part in the launch failure of a Proton rocket six years ago, in December 2010.

According to the office of Russia’s federal Prosecutor General, employees at RKK Energia used a wrong formula during the fueling of the company’s Block DM-03 upper stage, which received 1,582 kilograms of extra liquid oxygen above the maximum allowable limit. The prosecutors allege that the department head at RKK Energia Stanislav Balakin, the unit head Aleksandr Martynov and his deputy Sergei Lomtev, while being responsible for the development of operational documentation for Block DM-03, failed to ensure that their subordinate engineer Yuri Bolshigin had completed the on-time adjustment of the computation formula controlling the operation of the fueling system.

This is not the right way to encourage good work in Russian aerospace factories. Sure, these guys screwed up, but you don’t put them on trial, you fire them and hire better people. Making them scapegoats in this way is only going to scare away the best people, who won’t want to join a high-risk industry where, if they make a mistake, they might find themselves in prison.

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Sea Launch deal finalized?

1:29 pm

The competition heats up? Two articles today in the Russia press suggest that either their settlement deal with Boeing over bankrupt Sea Launch is either on the verge of signing or the Russians are trying to pressure Boeing to an agreement by use of the press.

The first article says that a final agreement is about to be signed, but provides no date or indication from Boeing that they have agreed to terms. The second announces that the private Russian company that is acquiring Sea Launch from the Russian government to compete in the commercial launch market has been given a launch license by the Russian government, and will launch its first rocket from Baikonur later this year, using the Ukrainian Zenit-M rocket that was designed to fly from the Sea Launch floating platform. .This launch is intended as a test flight prior to restarting launches from the Sea Launch platform itself.

The complexity of this Sea Launch situation boggles my mind. Russia has sold Sea Launch to a private Russian airline company, S7, which will use a Ukrainian rocket to launch satellites from the Sea Launch platform. Before that can happen however Russia has to settle its dispute with Boeing, which won a $300+ million settlement in court over the breakup of their Sea Launch partnership. That settlement reportedly includes free passenger seats on Soyuz flights to ISS, which Boeing is reportedly offering to sell to NASA, which might need them. Meanwhile, Russia does not seem to have a problem with a Russian company using a Ukrainian rocket, even though Russia itself has completely banned the use of Ukrainian equipment on any of its own space rockets or capsules.

The business of commercial space sometimes amazes me.

Posted in the airport terminal in Belize City. We are waiting for everyone to arrive to take a van together to our resort, Maya Mountain Lodge.

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Last Soyuz-U launches Progress to ISS

10:25 am

Russia today successfully launched a Progress freighter to ISS using its last Soyuz-U rocket.

The Soyuz-U has been launched hundreds of times since the 1970s, but has been replaced by Russia because it uses equipment made in Ukraine. The newer versions of the Soyuz rockets are completely home-built, but also have been plagued by quality control problems and corruption within Russia.

Posted in the air of the Gulf of Mexico in route to Belize.

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Russia proposes increased space cooperation with the U.S.

9:48 pm

They need the money: At a science conference on Tuesday the Russian ambassador to the United States stated that his country would welcome increased space cooperation between the two countries.

“I think it would be premature for me to speculate as to whether this zone of overlapping interests will increase or decrease,” Kislyak said. “We haven’t heard a new policy yet from the United States.” He suggested, though, there may be opportunities for the countries to cooperate on NASA’s long-term plans for human Mars exploration. “That is moon exploration, which is very much on our agenda. It’s space medicine and many, many other issues,” he said. “Our programs are not identical, but there’s always been a lot of overlap that provides room for serious and significant cooperation.”

“If the U.S. government chooses programs that would be extending that kind of cooperation,” he added, “they will find us to be willing to work with you.”

As I said, they need the cash. They want to keep their space industry alive, but low oil prices combined with the corruption that has shut down their launch industry has left them very cash poor. A combined Russian/SLS/Orion project to the Moon would be very helpful for them.

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Russian prosecutors indict four rocket engineers for Proton failure

7:17 pm

This won’t solve Russia’s problems: Russian prosecutors have recommended criminal charges against four rocket engineers for failing to properly calculate the right amount of fuel, resulting in a Proton launch failure.

According to the spokesman, Energiya department head Balakin, section head Martynov and his deputy Lomtev responsible for asdeveloping operational documentation failed to ensure that their subordinate, engineer Bolshigin, should timely adjust the calculation formula for resetting the fuel control system. “The document on the need for such adjustment was submitted to the organization’s relevant department but was written off by the engineer as fulfilled. As a result, the calculation formula remained unadjusted,” the spokesman said. “Subsequently, Balakin, Martynov, Lomtev and Bolshigin who knew for sure that the formula for the calculation of the fueling level contained incorrect data that could not be used during a rocket launch agreed operational documentation without pointing to a mistake in calculations,” the spokesman for the Prosecutor General’s Office said.

Putting these guys in prison is probably the worst thing the Russians can do. It will strike fear throughout their entire aerospace industry, causing all other engineers to take as few risks as possible, or leave the industry entirely. What the Russians should do is simply fire them, and reward those that noted the problem with promotions and increased pay.

In a truly competitive free market such a response will work, because even if the companies don’t reform themselves new companies will step forward to replace them. Russia however does not have a truly competitive free market, and so their only recourse is top-down bullying and threats. “Do it right or we will jail you!”

I should add that the company involved, Energia, has nothing to do with the recent corruption discovered in the construction of the upper stage engines for both Proton and Soyuz. That involved a different Russian company entirely.

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Soyuz launches successfully from French Guiana

8:53 am

A Russian Soyuz rocket, built for Arianespace and launched from French Guiana, successfully placed a commercial satellite in geosynchronous orbit on Friday.

The launch has some significance. First, it was the first time a Soyuz rocket placed a payload into geosynchronous orbit. Second, the payload was the first satellite built by a German company in more than 25 years

Finally, and most important, it demonstrated that at least one configuration of the Soyuz rocket is still operational as Russia investigates the corrupt practices at the company that has been building upper stage engines for both its Soyuz and Proton rockets.

Update: Russia has revealed that this on-going investigation will now delay the next Proton rocket launch for 3.5 months. This means that launch will occur sometime in May, and will occur just weeks short of a full year after the last Proton launch on June 9, 2016.

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Newly discovered quality control problems ground Russia’s Proton

8:52 am

Confirmed: As a result of its investigation into the problems during a June 9, 2016 launch, Roscosmos has now grounded its Proton rocket for at least the next six months due to the discovery of systemic quality control problems throughout the entire Proton construction process.

On January 23, the Kazakh-based division of the Interfax news agency reported the likelihood of an unusually lengthy delay with Proton missions, which could last several months. A day later, the Kommersant newspaper reported that a recent firing test had revealed technical problems with RD-0210 and RD-0212 engines, which propel the second and third stage of the Proton rocket respectively. The failure of the engine was reportedly traced to illegal replacement of precious heat-resistant alloys within the engine’s components with less expensive but failure-prone materials. The report in the Kommersant echoed the results of the investigation into the 2015 Proton failure, which found that low-quality material in the turbo-pump shaft of the engine had led to the accident.

On Jan. 20, 2017, Head of Roskosmos Igor Komarov chaired a meeting of the top managers at the Voronezh Mechanical Plant, VMZ, which manufactures rocket engines, including those used on the third stage of the Soyuz rocket and on the second and third stages of Proton. The high-profile meeting followed a decision to return already manufactured RD-0110 engines from Soyuz rockets back to Voronezh, after such an engine had been suspected as the culprit in the loss of the Progress MS-04 cargo ship on Dec. 1, 2016, as it ascended to orbit onboard a Soyuz-U rocket. [emphasis mine]

The worst part of this story, from an American perspective, is that it might result in a complete grounding of Russia’s entire rocket fleet, since some of these issues involve the Soyuz rocket as well. All manned flights to ISS will stop, which might force us to abandon it for a time.

Read the article. It suggests that Russia’s space industry is now in big big trouble.

Update: The Russians are replacing the entire Soyuz capsule that they had planned to use for the March manned mission to ISS.

“Spaceship No. 734 may be replaced by spacecraft No. 735 over a leak in the descent module [of the 734th space vehicle]. This is not yet known for sure. The spacecraft will be returned for a check,” the source said.

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A 1960 Soviet-era vision of the U.S.S.R. in 2017

11:34 pm

Link here. As noted at the link:

In 1960, V. Strukova and V. Shevchenko wrote a story, illustrated by L. Smekhov, about the Soviet Union in 2017. The date was not fortuitously chosen– it marked the 100th anniversary of the October Revolution that brought the Communists to power. The authors believed that people in 2017 would be fortunate to live in a world liberated by Soviet science, where the climate could be controlled, the flow of the northern rivers could be controlled, and Alpha Centauri was a flight destination. The Moscow-based newspaper The Moscow Times described as follows Strukova and Shevchenkos’s story: “A hundred years ago, the men and women who brought Communism to the Tsarist Empire had big plans. Decades into that experiment, the U.S.S.R. was leading the world’s ‘Space Race’ and it seemed there was nothing the country couldn’t do. In 1960, the Soviet movie studio ‘Diafilm’ released a filmstrip titled ‘In the Year 2017,’ by V. Strukova and V. Shevchenko, depicting a vision of the U.S.S.R. set 57 years in the future.

While the story, with illustrations, is essentially a pro-Soviet science fiction tale written for school children, it still expresses the boundless hope for the future that filled the cultures of both the Soviet Union and the United States at that time. All dreams were possible, and given time all would come true.

This historical piece however does illustrate again the tragic but consistent failure of communism and socialist thought, wherever it has been tried. The Soviet culture of Russia dreamed big, and did accomplish much, but they were crippled by a political and economic system that guaranteed bankruptcy, leading to the collapse of that system well before its 100th anniversary.

It is a continuing tragedy that so many people today continue to believe in that system, even after so many failures.

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Proton launch delayed again, possibly for months

10:56 pm

The first Russian Proton launch since June and presently scheduled for February 2nd could possibly be delayed again, possibly for months this time.

The launch of a Proton carrier rocket with the EchoStar-21 satellite could be postponed yet again, a source at Baikonur cosmodrome told Interfax on Monday. “Preparations continue for the launch of the Proton carrier rocket. However, given a combination of factors, a lengthy pause cannot be ruled out which may lead the launch to be postponed by several months,” the source said. It was reported that the Proton launch with the EchoStar-21 satellite was slated for February 2 but then postponed again by a week for non-technical reasons.

It is very unclear what is causing these repeated delays which has produced possibly the longest gap between Proton launches in quite awhile.

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Boeing obtains available seats on Soyuz as result of Sea Launch settlement

10:57 pm

As part of Boeing’s settlement with Russia over the break-up of their Sea Launch partnership, the company has obtained rights to several manned Soyuz seats that are available because the Russians have cut back on the number of astronauts they are flying to ISS.

In turn, Boeing is offering these seats to NASA.

[John Elbon, vice president and general manager of space exploration at Boeing] said he expects NASA to make enter into negotiations with Boeing about the 2017 and 2018 seats shortly after a Jan. 27 deadline for companies to respond to the sources sought statement, a requirement when a government agency proposes a sole-source procurement. “Assuming that goes well, I think we would sit down and, in relatively short order, negotiate the details of this kind of arrangement,” he said.

He didn’t specify how much Boeing was proposing to charge NASA for the seats. The agency announced an agreement with Roscosmos in August 2015 for six Soyuz seats in 2018 at a total cost of $490 million, or $81.7 million per seat. “It’s a good value for NASA and the taxpayer,” Elbon said of Boeing’s proposed deal with NASA. “We wouldn’t ask them to pay more than they would have been paying before.”

What is happening here is that Boeing is trying to use these Soyuz seats as a way to recoup its losses from Sea Launch. The problem is that NASA doesn’t really need the manned flights in 2017 and 2018. They might need them in 2019, should the manned capsules that SpaceX and Boeing are building get delayed, but I am not sure that this deal will allow them to be used at that time.

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“We have waited for you for a very long time.”

10:43 pm

Link here.

Who said this, and why they said it, puts the lie to every left wing anti-American cliche expressed for the past half century. The people who know what oppression is, and where it comes from, also know who has consistently defended their freedom the most, in the past.

My only fear is whether the United States that these Eastern European nations remember and love still exists. I am sadly no longer sure.

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Russians complete investigation into Progress launch failure

5:50 pm

The news is not really good.

According to Roskosmos, the accident led to the unplanned separation between the third stage of the launch vehicle and the spacecraft. Members of the commission established that the most probable cause of the accident had been the disintegration of the oxidizer tank of the third stage as a result of the failure of the 11D55 engine, following the fire and disintegration of its oxidizer pump, Roskosmos said. The fire in the pump and its disintegration could be triggered by a possible injection of the foreign particles into the pump’s cavity or by violations during the assembly of the 11D55 engine, such as a wrong clearance between the pump’s shaft and its attachment sleeve, floating rings and impellers, leading to a possible loss of balance and vibration of the rotor.

The fault, which has a production nature, manifested itself during the flight, Roskosmos said. The State Corporation promised to prepare a plan of immediate action at enterprises of the the rocket industry to ensure the safe launch of the Progress MS-05 spacecraft, Roskosmos announced. [emphasis mine]

It appears that though they have not definitely established what went wrong (due to a lack of telemetry), they have determined that all of the possible causes are related to quality control issues.

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Update into into Dec 1 Progress failure investigation

8:49 am

The Russian investigation into the December 1 launch failure of a Progress freighter has come up with two possible causes, both centered on the third stage of the Soyuz rocket.

According to one theory some unforeseen dynamic loads on the tank’s structure were exacerbated by low-quality welding of the tank and led to its rupture.

Another hypothesis presumed that an anomalous operation of the RD-011o engine, (as a result of higher-than-normal vibrations in its bearings or in its turbopump), could apply unforeseen loads onto the aft bulkhead of the oxidizer tank, which is located right above the engine.

Both scenarios were based on theoretical assumptions and could not be proven without doubt due to lack of telemetry.

It appears that they might be delaying any further manned launches while they evaluate the third stages of rockets intended for future flights.

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U.S. wins launch scorecard for 2016

10:24 am

Doug Messier today has compiled a list showing the launch totals worldwide for 2016, showing that though the U.S. and China tied for first with the most launches, 22, the U.S. won the race with fewer launch failures. Russia fell to third, almost entirely because its Proton rocket has been grounded since June.

What I find interesting is that, very slowly, the competing American companies are beginning to compile launch numbers that match those of whole nations. ULA completed 12 launches, which beat everyone but the U.S., China, and Russia. SpaceX, despite no launches after its September 1 launchpad explosion, still beat India and Japan, long considered established space powers, and finished only one launch total behind Europe.

Eventually, I believe SpaceX is going to get its technical problems ironed out. When that happens, the competition between them and ULA could have both companies producing numbers that beat out the national programs of Russia and China. In fact, I expect this to happen within three years, but more likely sooner.

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The fall of the USSR, as seen by a witness

3:44 pm

Link here. The witness, Oleg Atbashian, is also the founder of The People’s Cube, one of the best websites for clever satire making fun of the left. His insights and review of the break-up of the Soviet Union twenty-five years ago is definitely worth reading. It is even more important to read it because of his thoughts on today’s America:

In 1994 I emigrated to America, hoping to raise a family in a country ruled by reason and common sense. But lately I’ve been noticing a shortage of these commodities in the U.S. as well. While the ratio of reasonable people in this country may still be greater than elsewhere in the world, the ignorant passion for Soviet-style politics is very alarming.

Just as it was in the USSR, American media now publishes articles that read like Pravda’s updates on this week’s current truth. American entertainers and moviemakers are consistently pushing the politically correct party line. Social media giants are seriously considering political censorship. Indoctrination in American schools and colleges is worse than what I’ve seen in the Soviet Union, where getting a real education was actually important. And finally, just as it was in the USSR, more and more people begin to resent the “progressive” establishment and mock the lying media.

He is justly worried by the large number of Americans who, for reasons that are inexplicable, have bought into the fantasy that communism and government rule is the best way to get things done, when all of history proves otherwise.

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Russia once again postpones next Proton launch

6:11 pm

Russia has once again postponed the next launch of the Proton rocket, the first since the June 9 launch where the 2nd stage engine cut off prematurely.

The launch of a Proton-M carrier rocket with an EchoStar 21 satellite from the Baikonur space center in Kazakhstan has been delayed over the need to hold additional checks of the rocket’s systems and acceleration unit, Russia’s Khrunichev Space Center reported on Friday. The Khrunichev Space Center is the producer of Proton carrier rockets.

I wonder if International Launch Services (ILS), the Russian company that handles Russia’s international commercial launches, is going to lose a customer now, as SpaceX did when it delayed its next launch until 2017.

According to Russianspaceweb, they have figured out what went wrong on June 9, and have been taking corrective actions. The cause of the new delay however, as well as its the fix, appear to be very unclear.

By December 23, the satellite had already been integrated with the launch vehicle, when an unspecified technical program required to postpone the mission until January 2017, at the earliest. Independent sources said that the launch vehicle would have to be disassembled and one of its stages returned to Moscow, but representatives of the International Launch Services, ILS, which manages the mission, said that no such action would be required and the launch had been postponed by a “logistical” issue.

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Joe Journeys – Church of the Saviour on Spilled Blood, Saint Petersburg, Russia

6:01 pm

An evening pause: Hat tip Danae. As she wrote, “This next may be in keeping with religious or security undercurrents just now, or as something beautiful to see at any time at all. Tsar Nicholas III was mortally wounded in his carriage by a bomb thrown by revolutionary terrorists in 1881. As a memorial to him, his family built this fabulous church on the very spot in St. Petersburg where the attack occurred. The interior is amazing, walls and ceiling entirely covered with colorful religious mosaics.”

Just watch. You will wish you were there in real life.

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Update on Progress/Soyuz launch failure

9:37 am

Link here It appears that the spacecraft separated from the upper stage while it was still firing, causing that stage to next collide with the spacecraft.

What is certain is that computers on Progress MS-04 interpreted the separation as nominal and initiated a sequence, which would be normally performed upon reaching orbit, including the deployment of the ship’s antennas and the preparation of the attitude control thrusters, DPO, for action. However, moments after the separation, the spacecraft appeared to be struck twice by the rocket stage, which clearly continued its powered flight. The first impact came nearly straight into the aft bulkhead of the ship, then the second hit landed moments later into the side of the vehicle.

The collision apparently caused the spacecraft’s propulsion system, SKD, to shift to the side from its normal position, the temperature inside its enclosure to plummet and the whole vehicle to tumble. The telemetry from the Progress also indicated the activation of its thermal control system, probably in response to a breach in the ship’s transfer compartment.

Why separation occurred prematurely, while the engines were firing, still remains a mystery.

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Dispute in Russia over Progress failure investigation

9:06 am

The Russian mission control has publicly disavowed a report that cited mission control as saying that the failure of the Soyuz/Progress launch last week was due to the premature shutdown of the Soyuz rocket’s third stage.

First the source:

A source in the space and rocket industry told TASS that the emergency shutdown of the engines occurred after 382 seconds and at the same time the spacecraft’s separation occurred. After that, the flight control system started operating in automatic flight mode and began deploying antennas and solar batteries. However, the spacecraft failed to reach orbit and started falling and ended up being destroyed in the atmosphere.

Next the disavowal:

”Any version which are now being voiced by the media have nothing to do with reality, including the incorrect cyclogram data. The results of the commission’s work will be announced no earlier than December 20,” a spokesperson told RIA Novosti.

I must admit that the source’s suggested cause for the failure, that the rocket engine shut prematurely and the spacecraft then simply separated and began its deployment before it had reached orbital velocity and thus fell back to Earth, sounds good at first glance. However, this explanation does not explain why all communications with the spacecraft suddenly ceased.

Either way, it does appear that there is an effort within Roscosmos to spin the events in the press, prior to the completion of the investigation. This in itself is not a good sign, as it suggests that there are people there who are trying to cover their asses rather than honestly trying to find out the cause of the failure.

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Russian authorities locate Progress debris

8:37 am

Russian authorities in Siberia have located and identified several bits of wreckage from the Soyuz-U rocket and Progress freighter that failed to reach orbit last week.

Two pieces, including a large spherical object, were found by herders over the weekend, while another was discovered in the courtyard of a residential house on Monday, said the region’s head Sholban Karaa-ool, warning people not to touch any metal debris.

Regional sanitation officials “inspected the spot where two pieces of the spacecraft were found in the Ulug-Khem district, on the side of the mountain and near a yurt,” Kara-ool said on his official website. “Another small piece was found in the yard of a house in the Eilig-Khem village,” he said.

Whether this debris can help them pinpoint the cause of the failure remains unknown.

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Another Russian Roscosmos official arrested

8:33 am

Russian authorities have arrested the chief operating officer from a Roscosmos aircraft division that apparently builds the MiG airplane.

Evdokimov faces up to 10 years of imprisonment under large scale fraud charges if found guilty. The investigation has found that Evdokimov has committed fraud, stealing more than $3 million from the Russian Aircraft Corporation MiG.

…Earlier, the investigators arrested Alexei Ozerov, a former CEO of MiG subsidiary, and deputy CEO of another Russian aircraft manufacturer Tupolev Yegor Noskov in connection with this case. The detainees are suspected of having illegally acquired a development site in northeastern Moscow that was later resold and then sublet to the subsidiaries of the United Aircraft Corporation (UAC) among other clients.

I am increasingly surprised the Russians have been able to build anything that works. Their management teams generally appear more interested in robbing the company than making sure the company does what it is hired to do.

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Cause of Progress failure unlikely to be found

6:03 pm

Not good: Sources in the Russian press say that it will likely be impossible to pinpoint precisely the cause of the Progress failure this week because of a lack of telemetry or data.

The causes of Thursday’s loss of the Progress cargo spacecraft are unlikely to be established, because neither telemetry data nor debris of the Soyuz-U rocket that was taking the cargo vehicle in orbit are available. “Telemetry transmission from the rocket was disrupted instantly, so it is practically impossible to establish the sequence of events to identify the causes of the emergency. As for material evidence, such as debris of the rocket’s third stage that might provide some clues, it is not available, either,” the source said.

They are still searching for debris but have so far come up empty.

Lacking data, they are now beginning to use computer modeling to try to figure out what happened. The prime suspect is the third stage engine.

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