Tag: aviation

Because Boeing did nothing to replace a defective part, an airplane crashed killing fifteen

5:10 pm

MD-11 crash from November 2025
Click for NTSB report.

Despite previously identifying stress fractures in a part that held the engines to the wing on three different MD-11 airplanes, Boeing did nothing to replace the part, and so fifteen people died when the engine fell off a UPS cargo plane at take-off in November 2025.

The sequence of images to the right, which I have annotated to show the engine breaking free from the wing, comes from the NTSB preliminary investigation report [pdf]. From the article at the link above:

In an update to its ongoing investigation into the crash of UPS Flight 2976, the National Transportation Safety Board [NTSB] said its team found fatigue cracking and overstress failure across much of the bearing race inside the area that attached the plane’s left engine to its wing. NTSB investigators then went back into Boeing service data and confirmed the design of the bearing assembly was consistent with the original design of that part.

[A] Boeing Service Letter dated Feb. 7, 2011 [and found by the NTSB], told operators the company was aware of four previous bearing race failures on three different airplanes. Boeing had seen the fractures of the bearing race, with the parts splitting in two and moving out of place. However, Boeing told operators its review of the bearing failure “would not result in a safety of flight condition.”

Boeing said further regular inspection of MD-11 airplanes would include a look at this bearing assembly, something scheduled for 60-month service intervals. And while Boeing used that service letter to discuss a new bearing assembly configuration, the installation of the original parts “was not prohibited.”

The plane itself had been built by McDonnell-Douglas, prior to its merger with Boeing. Nonetheless, Boeing engineers and managers were aware of this issue and did nothing to inform the owners of this plane so they could take action. In fact, Boeing apparently continued to ship out the original parts to airlines as replacement spares.

This is another example of a serious quality control problem at Boeing, where engineers no longer view serious engineering failures as serious engineering failures.

22 comments

Lockheed Martin completes first flight of X-59 supersonic test plane

8:32 am

My heart be still: Lockheed Martin yesterday completed the first flight for NASA of the X-59 supersonic test plane, designed to produce a much quieter sonic boom.

The X-59 took off from Skunk Works’ facility at U.S. Air Force Plant 42 in Palmdale, California, before landing near NASA’s Armstrong Flight Research Center in Edwards, California. The X-59 performed exactly as planned, verifying initial flying qualities and air data performance on the way to a safe landing at its new home.

The plane did NOT yet fly at supersonic speeds. It needs to do more flight tests before it attempts that feat. A somewhat uninteresting video of the flight can be seen here. (Hat tip to Jay.)

This NASA program is another example of government waste. NASA issued the company a $247.5 million the contract for this test plane in 2018, after two years of preliminary design work. Seven years later it finally flies once, but not at supersonic speeds.

Meanwhile, the commercial startup Boom Supersonic started at about the same time, raised far less investment capital, and successfully flew a supersonic flight in January 2025 in which it broke that sound barrier three times, with no audible sonic boom.

Boom has already obtained numerous contracts with the airline companies United and Japan Airlines to provide them planes. It is in the process of manufacturing its Overture commercial passenger jet for sale.

Lockheed Martin’s NASA project has no investors and no airlines interested in the test plane. Lockheed Martin itself is not marketing it and has no plans to use the technology commercially. In fact, NASA likely forbids it from doing so.

I am sure these tests will provide data helpful to Boom and the handful of other commercial supersonic startups. At the same time, the entire project is another example of a poor use of taxpayer funds.

11 comments

Was it a piece of space junk that broke a United plane windshield in flight last week?

10:33 am

While flying at 36,000 feet last week, the right half of the windshield on a United 737-Max airplane was suddenly hit by something hard and dense, shattering it.

The outer glass fractured. One of the pilots was injured. In photos shared online, the captain appeared to have injuries consistent with shattered glass: his forearm bloodied, shards of broken glass strewn across the flight deck. Scorch marks appeared across the impacted section. Whatever hit the aircraft left no debris, no residue, and no clear explanation.

The crew was able to safely bring the plane back so that everyone could be off loaded.

Though we don’t know what the object was, there is now reasonable speculation that it might have been a piece of space junk falling to Earth. The plane was flying high enough to almost completely eliminate a bird as the cause, and the damage showed no sign of feathers, blood, or tissue. Moreover, the captain reported seeing something metallic just before impact.

The National Transportation Safety Board (NTSB) has started an investigation. Though space junk could have caused the incident, NASA estimates the odds of such a thing occurring at a trillion to one. It is far more likely there was some internal flaw in the window itself that caused it to catastrophically fail, though even this theory doesn’t fit all the known facts.

14 comments

Volonaut – Test flight of Airbike prototype

6:01 pm

An evening pause: Someday relatively soon, this prototype will be available for purchase, though at present it does not appear to me to be ready for prime time.. Where would you go this weekend if you had one?

Hat tip Cotour, who adds, “I bet you did not know that there is now a flying barbeque. I like mine medium rare.”

11 comments

Boom Supersonic’s XB-1 test plane breaks the sound barrier

9:09 am

UPDATE: The XB-1, using the exact same air corridor used by Chuck Yeager when he became the first pilot to break the sound barrier in 1947, has successfully become the first privately funded and constructed airplane to fly faster than the speed of sound, doing it three times for about six minutes total.

Original post:
—————————
The airplane startup Boom Supersonic is hoping to complete its first manned supersonic flight today, piloted by chief test tilot Tristan “Geppetto” Brandenburg.

The flight will be manned, using its prototype XB-1 test plane.

Since March 2024, Boom has carried out 11 test flights as it gradually pushed the envelope toward breaking the sound barrier. [Today’s] flight of the 68-ft-long (21-m) XB-1 prototype will be conducted in a special air corridor reserved for supersonic aircraft. During the 38-minute flight at an altitude of 34.000 ft (10,000 m), the aircraft is expected to reach Mach 1.1, which is half of the ultimate goal of Mach 2.2.

Once the company completes test flights of XB-1 it will begin building its Overture commercial supersonic plane for sale to airline companies, capable of carrying up to 80 passengers. It already has contracts and financial support from a number of major airlines, including United and Japan Airlines.

I have embedded the live stream below. It has already started.
» Read more

5 comments

Boeing to take more than a decade to refit two 747s for Air Force One

7:30 pm

Utter incompetence: According to recent news reports, Boeing will not be able to deliver the two 747s it is refitting to be the president’s Air Force One fleet until 2029, even though it signed a $3.9 billion contract to do so in 2018.

The delay is startling given that Boeing isn’t building the planes from scratch. During Trump’s first term, Boeing started to overhaul two 747s that were built for a Russian airline that never took the jets.

This is more than absurd, it is obscene. Boeing is handed two flightworthy 747s and almost $4 billion, and it can’t refit the two planes in less than a decade? It seems one of the first things Trump should do once he returns to office next month is cancel this contract entirely, demand a refund from Boeing, and simply convert his present fleet of “Trump Force One” airplanes that he has been using since 2020 for use as president. Cheaper, faster, and certainly a wiser use of taxpayer money.

As for Boeing, this story illustrates once again how far this company has fallen. Remember, it was Boeing that conceived, designed, and built the 747. Moreover, its 747 has been used for decades for Air Force One. For its engineers now to be incapable to refitting another two 747s for this purpose seems inconceivable, and suggests those same engineers should not be trusted on any new planes they build.

22 comments

Union official accuses Boeing of more unsafe practices

10:44 am

According Craig Garriott, a union representative at Boeing’s satellite-manufacturing facility in Los Angeles, Boeing’s management has been allowing numerous safety violations to go unfixed in order to focus on profits and fast production.

Acquired by Boeing in 2000, the satellite manufacturing facility has long been considered one of Boeing’s more stable business units. It relies in part on a union workforce that Garriott said is responsible for constructing and testing satellites and their component parts.

“This is perhaps the most technical group of hourly people that you’ll probably find on this planet,” said Garriott, who estimated he’s raised between 300 and 400 safety violations over the past year. Those complaints, he said, range from obstructed fire extinguishers and fire alarms to concerns over heavy machinery blocking exits and trapping workers in certain parts of the factory.

In October, union workers filed a complaint with the Occupational Health and Safety Administration that, according to Garriott, highlighted unsafe conditions on the factory floor. Another technician at the facility, who spoke to CBS News on the condition he remain anonymous to protect his job, said safety had become “an afterthought” and quality had “degraded” over the past five to six years.

It is important to recognize that Garriott’s complaints might simply be the typical tactic of a union representative during or before contract negotiations. There are rumors Boeing plans to sell off its space subsidiaries, which would include this satellite division. Garriott might simply be putting public pressure on the company in order to give himself a better negotiation position if such a sale takes place.

It is also quite possible, based on Boeing’s recent very poor track record in quality control, that everything Garriott says here is also true.

7 comments

Boom completes second flight test of one-third-scale prototype supersonic jet

9:28 am

The airplane startup Boom Supersonic on August 26, 2024 successfully completed the second test flight of its one-third-scale prototype XB-1 supersonic jet, taking off from the Mojave Air & Space Port in California.

The flight was manned by the company’s chief test pilot Tristan Brandenburg, and had as its primary engineering goal to test the retraction and deployment of the jet’s landing gear. During the fifteen minute flight the plane climbed to 10,400 feet and a maximum speed of 277 miles per hour.

The test checklist included retracting and extending the undercarriage for the first time, checking the plane’s handling, and the activation of a new digital stability augmentation system for roll damping to help maintain control in stall conditions. In addition, the right wing of the XB-1 was fitted with tufting to monitor the direction and strength of airflow over the wing.

The company plans a 10-flight test program with this prototype, eventually leading to flights exceeding the speed of sound. Boom also claims that its design will reduce the sound of the sonic boom, thus allowing its commercial supersonic jet to fly over land and increasing its commercial value. At the moment it has orders to sell as many as 96 of its full-scale plane to various airlines, including United and Japan.

3 comments

$243.6 million plea deal allows Boeing to avoid a criminal trial

9:59 pm

The Justice Department and Boeing have made a plea deal so that the company can avoid a criminal trial for breaking its previous plea deal over 737-Max plane crashes that killed 346 people.

Under the agreement, Boeing will plead guilty to a criminal fraud charge stemming from the fatal crashes in Indonesia in October 2018 and in Ethiopia less than five months later that killed a combined 346 people.

Boeing must also pay the hefty fine [$243.6 million], invest at least $455 million in compliance and safety programs, and have an independent monitor oversee Boeing’s safety and quality procedures for three years

The company had made similar deal in 2021 with Justice when it became clear it had deceived FAA regulators about the software on new 737-Max planes that caused these crashes. This new deal is because the company apparently violated that 2021 deal, and allows it to avoid a criminal trial.

A judge still has to approve this new plea deal. Many families of the deceased oppose it, demanding instead that company managers be put on trial. Even if the judge accepts it, Boeing will still be liable for other more recent incidents.

All in all, Boeing comes off as a morally corrupt and incompetent company that was willing to cut corners, lie about it, thus allow more planes to crash because of its actions.

No wonder everyone wants to blame Boeing for every single incident that has recently occurred on various commercial jets, even though in many cases the blame resides more with the maintenance departments of the airlines that had purchased the planes. And no wonder no one believes the claim that the astronauts that flew up to ISS in June are not “stuck” there. They probably aren’t, but why believe anyone from such a compny.

10 comments

Southwest Airlines is deservedly in financial trouble

12:10 pm

In love with bigotry, blacklisting, and bad maintenance
In love with bigotry, blacklisting, and bad maintenance

Late last week Southwest Airlines revealed that it is going to cease operations in four airports while simultaneously cutting 2,000 jobs as a result of a $231 million loss in the first quarter of 2024.

The company’s CEO, Bob Jordan, attempted to lay the blame for these difficulties on Boeing’s quality control problems, which has not only caused it to delay delivery of 26 planes in Southwest’s most recent order of 46, but has likely driven away customers, since Southwest uses only Boeing planes to simplify the maintenance of its fleet. For example, the article cited this incident and attributed it to Boeing’s troubles:

Earlier this month, an engine cowling on a Southwest operated Boeing 737-800 fell off during take off from Denver airport. Flight 3695 reported the engine cowling “fell off during takeoff and struck the wing flap” an FAA spokesperson previously told Newsweek.

Neither the article or Jordan are being entirely truthful or accurate. That engine cowling incident has nothing to do with Boeing, as the plane had been owned by Southwest for a considerable time, which means its maintenance is Southwest’s responsibility, not Boeing’s.

And why might Southwest have maintenance issues? Maybe these maintenance problems exist because the airline has gone all-in for Diversity, Equity, and Inclusion, creating racial and sex quotas that make race and sex the most important qualifications for many jobs, not skill, knowledge, talent, or experience. Its 2022 DEI-report [pdf] cited these goals:
» Read more

10 comments
1 2 3 … 13