Transportation Safety 3

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Message 2125139 - Posted: 6 Sep 2023, 18:43:30 UTC - in response to Message 2125137.  
Last modified: 6 Sep 2023, 18:47:11 UTC

i know hindsight is often mentioned in many incidents, but who sets the requirements for certification?

In this case it was EASA who set the rules, and approved the maintenance schedule. This being done by reviewing the documentation for the aircraft, both in whole and its constituent parts. This documentation includes "life time testing", and "operational stress life testing" - in the case of bearings the former is quite easy to perform, but the latter is a lot more difficult.


Would the issue still have been detected had it been 300 hours instead of 400?

Your second question is not so easy to answer, as, particularly with helicopters, but true of just about every mechanical means of transport, it depends on the duty cycle history. For example 400 hours may be a gross under estimate of the life when used in a helicopter that is used for long "straight" flights in calm winds, but for one that does lots of short hops with lots of twisting and turning in gusty wind conditions the "true" life may only be 200 hours.

{edit to add} You do ask some very good questions, and those were two that many wouldn't even think about - great questions :-)
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Message 2125142 - Posted: 6 Sep 2023, 19:33:49 UTC - in response to Message 2125139.  

Thanks for the explanations.
{edit to add} You do ask some very good questions, and those were two that many wouldn't even think about - great questions :-)
Thanks again.
After spending all that time in logistics, I've seen much, not all of it nice.
I gained a CPC long before it became a "thing" for drivers.
It was a requirement if one wanted to enter management in the transport industry.
It was also a requirement for transport companies that at least one of their managers held a CPC as it was a requirement for a company to hold an Operators License.
I ended up as a transport manager, but only lasted 10.5 months before I resigned.
Couldn't handle the B/S or office politics.
Ah getting out of the depot every day & being your own boss, poodling along at your own pace (to a degree), getting back, parking up & going home.
What fun. :-)

Oh & the fun having a go at managers about taking an un-roadworthy vehicle on the road.
These days...
...with any form of transport...
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Message 2125149 - Posted: 6 Sep 2023, 22:19:17 UTC - in response to Message 2125142.  

... Oh & the fun having a go at managers...

What's needed for the managers to (be able to) better manage the transport/logistics?


Keep searchin'?
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Message 2125150 - Posted: 6 Sep 2023, 23:46:11 UTC

What's needed for the managers to (be able to) better manage the transport/logistics?
To actually know what's involved from top to bottom and that means them actually doing all those things. Managers that don't know what really goes on outside of their offices are a real big liability and I had to deal with some real doozies myself over 22yrs with Sydney Buses (1 didn't even have a drivers license for a car let alone a heavy vehicle, needless to say that he didn't last 3mths at that job).

Cheers.
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Message 2125156 - Posted: 7 Sep 2023, 8:00:07 UTC - in response to Message 2125150.  

What's needed for the managers to (be able to) better manage the transport/logistics?
To actually know what's involved from top to bottom and that means them actually doing all those things. Managers that don't know what really goes on outside of their offices are a real big liability and I had to deal with some real doozies myself over 22yrs with Sydney Buses (1 didn't even have a drivers license for a car let alone a heavy vehicle, needless to say that he didn't last 3mths at that job).
Yep.
When i started my job, all the senior bosses (even though it might have been 20+ years ago), had actually done the job, and at least had some idea of what was involved.
Now, almost none of the senior management (and quite a few of the more junior managers) have come from other businesses and industries & haven't got the slightest idea of what is involved in doing the work required to get the job done.
And given the current management style seems to be to come up with an idea, then everything from then on is about implementing the idea (no matter how stupid or nonsensical it is), if you want to keep your job.
So trials, surveys, working groups etc are all about producing results that support the brilliant idea, regardless of the actual result might have been.
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Message 2125162 - Posted: 7 Sep 2023, 13:42:19 UTC - in response to Message 2125156.  

Yeah, ain't that the truth.
Here in the UK, I think it began with the EU's IiP (Investors in People B/S with their Americanized soundbites, for example: Mission Statement).
Sheesh.

@Wiggo, I think you're being polite in calling them doozies.

@Martin. Having managers that know what it means when a driver says NO.
The times I've been pressurized to change my mind, sometimes with the threat of dismissal. :-)
The worst though are security guards, especially since this Hi-Viz crap was introduced.
The times I've been preventing in entering sites because I wasn't wearing one (even though there was one hanging up in the cab).
Personally, I don't believe they are necessary when one is driving, walking on a site, then yes.
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Message 2125199 - Posted: 8 Sep 2023, 8:26:26 UTC

You have to give him credit for spotting a problem, but what he didn't notice was that he was the problem.

https://www.bbc.co.uk/news/av/world-us-canada-66745802
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Message 2125229 - Posted: 8 Sep 2023, 23:44:13 UTC - in response to Message 2125199.  

You have to give him credit for spotting a problem, but what he didn't notice was that he was the problem.

https://www.bbc.co.uk/news/av/world-us-canada-66745802
*speachless*
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Message 2125475 - Posted: 14 Sep 2023, 7:51:02 UTC

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Message 2125538 - Posted: 15 Sep 2023, 5:51:09 UTC - in response to Message 2125475.  

We're stuck and running out of alcohol.

Passengers stranded on a cruise ship off the coast of Greenland are starting to worry they might run out of one essential item.

Cheers.
2nd time lucky.
Cruise ship pulled free after being stuck in mud for three days in remote Greenland
The Danish military's Joint Arctic Command confirmed that the ship had been pulled free by the Tarajoq, a trawler and research vessel that made a failed attempt to do so a day earlier.
The Ocean Explorer will be taken to a port to assess any damage, while the passengers will be flown home, said SunStone Maritime Group, which owns the vessel.

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Message 2125585 - Posted: 15 Sep 2023, 23:15:05 UTC

Hope they had extra barf bags, clean underwear for the flight crew & passengers available...
United Airlines flight to Rome plunges 28,000 feet in 10 minutes, then reverses course
United Airlines Flight 510 never made it to Rome after the Boeing 777 experienced an issue with its cabin pressurization, forcing the plane to rapidly drop and the pilot to turn the aircraft carrying 270 passengers and 14 crew members around, a spokesperson told The Post.
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Message 2125592 - Posted: 16 Sep 2023, 0:46:10 UTC - in response to Message 2125585.  

United Airlines flight to Rome plunges 28,000 feet in 10 minutes, then reverses course
*eye roll*
Love how they say it "plunged" to make it sound like the end of the world, when what actually happened was the crew did "a controlled emergency descent" as per SOP for a pressurisation issue.
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Message 2125603 - Posted: 16 Sep 2023, 9:06:02 UTC - in response to Message 2125592.  

But "controlled emergency decent" isn't as good a headline as "plunges 28k feet in ten minutes".
(and 28k feet in 10 minutes is only 2.8k feet per minute, only about 50% over a normal steep decent rate).
Headline writers should learn facts before spouting sensational garbage.
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Message 2125614 - Posted: 16 Sep 2023, 11:22:01 UTC - in response to Message 2125603.  

But but but...

The Advertising is all in the sensationalism and tease and bait, and good detail and journalism be damned.

Very sad really.


All in our commercially poisoned world...
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Message 2125615 - Posted: 16 Sep 2023, 11:25:25 UTC - in response to Message 2125585.  

That's another Boeing going "off nominal"...

When was the last Airbus depressurisation?

... For comparison...


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Message 2125617 - Posted: 16 Sep 2023, 12:06:59 UTC - in response to Message 2125615.  
Last modified: 16 Sep 2023, 12:08:56 UTC

When was the last Airbus depressurisation?
Pressurization problems after departure, during initial climbing happen regularly; e.g. damaged pressure valves (small, interchangeable devices at the lower fuselage), like this two weeks ago:

Sep 3, 2023, Easyjet A320 at Geneva, Switzerland:
https://avherald.com/h?article=50df6fbc&opt=1

The last depressurization and emergency descent of an Airbus was probably this incident in August:

Aug 10, 2023, Easyjet A320 near Edinburgh, UK:
https://avherald.com/h?article=50cdd37d&opt=1

You can search here...
https://avherald.com/h?list=&opt=1

... for "pressurization" or "cabin pressure". Tick "Occurence" button instead "Update" to sort results by incident date.
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Message 2125619 - Posted: 16 Sep 2023, 12:27:50 UTC - in response to Message 2125617.  

So... Those two examples for Easyjet are one each month, yet nothing hitting the headlines.

So why has that Boeing 777 hit the clickbait press?


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Message 2125620 - Posted: 16 Sep 2023, 13:47:26 UTC
Last modified: 16 Sep 2023, 14:17:15 UTC

The United 777 incident appears to have been no more severe than usual depressurization incidents. The aircraft indicated a cabin pressure problem and the pilots responded according to SOP. The pressure was apparently sufficient so that the passenger masks were not needed.

Sep 13, 2023: United 777 near Halifax, NS (Canada):
https://avherald.com/h?article=50e68713&opt=1

I ignore all reports about flight incidents (or accidents) from journalists on TV or newspapers. They typically have no knowledge about aviation, airlines, operating procedures, aircraft tech. Instead they are usually just looking for a scary headline, as Grant (SSSF) noted. If any incident occurs, it's best to wait for the facts at FlightAware or Aviation Herald. The professional pilots also read there and exchange their comments.

[EDIT:]... and as a layman one can learn a lot about modern jets and its subsystems in the detailed accident reports at these websites, e.g. the Air France 447 A330 crashed into the Atlantic Ocean in 2009:
https://avherald.com/h?article=41a81ef1/0068&opt=1
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Message 2125621 - Posted: 16 Sep 2023, 15:12:14 UTC - in response to Message 2125619.  

So why has that Boeing 777 hit the clickbait press?
Ask a psychologist about leaders and underdogs. It is a human trait.
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Message 2125623 - Posted: 16 Sep 2023, 15:46:04 UTC - in response to Message 2125619.  

So why has that Boeing 777 hit the clickbait press?

Simple, do it in America and it's far more likely to be picked up by sensationalists than the same event happening in Europe.
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