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Meanwhile in the merchant service: https://www.nautinst.org/resources-page/202202-boiler-over-pressure-causes-three-fatalities.html A drill ship holding position offshore was due to carry out the annual servicing of its two auxiliary boilers. The boilers were used only for well test operations and had not been operated since the last annual service, except for maintenance operations. The duty engineers brought the boilers up to temperature and pressure specifications in preparation for the annual checks. As this was underway, the pressure safety valves opened. They appeared to open at 1.9 bar for boiler 1 and 5.9 bar for boiler 2; well below the boilers’ working pressure of 7 bar. Over the course of the next four hours, the boilers were stopped and restarted a further three times. Each time, pressure safety valves operated at what appeared to be too low a pressure. Two shore based service technicians had now joined the vessel by helicopter but the boilers were not ready for servicing due to the perceived issues with the pressure safety valves. The ship’s engineers, together with the service technicians, again started the boilers to check the operation of the pressure safety valves. They still appeared to be opening below the boilers’ working pressure. It was decided to shut down the boilers and allow them to cool so the technicians could then overhaul the pressure safety valves. Once cool, the pressure safety valves of boiler 1 were adjusted in situ by the service engineers so they would open at a higher pressure. This explains why the ‘non-tamper’ seals were found missing from the safety valves of boiler 1 after the accident. The next day, the service technicians resumed the work, together with one of the ship’s engineering personnel. The boilers were started and almost immediately triggered alarms on the machinery monitoring panel. Over the course of the next 36 minutes at least 20 alarms were acknowledged as the team struggled to find the problem. Then, boiler 1 catastrophically failed from overpressure, filling the boiler compartment with steam. The two service technicians and ship’s second assistant engineer who were in the boiler room suffered lethal injuries. The weathertight door was blown open and the pressure vented to atmosphere, injuring another crewmember who was working nearby. The investigation found, among other things, that the pressure sensors of boiler 1 were not operating as required and were giving false pressure readings. Yet the accuracy of the pressure sensors was never questioned as everyone believed they knew the problem; that the safety valves were opening below their set pressure. It is possible that this led to confirmation bias that then set the stage for the unsafe act of adjusting the safety valves to open under higher pressure. Further, the service technicians’ lack of experience may have contributed to both the confirmation bias and the subsequent unsafe act. Adequate supervision by a qualified professional could have prevented this deviation from established safe practices.
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Jan 28, 2022 01:54
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Jan 28, 2022 02:03
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Tunicate posted:There's a space force subreddit now for people to shitpost about dumb stuff working there. When's Space Force gonna get some fucken space ships.
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Jan 28, 2022 02:07
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What in the gently caress? Why in gods name didn't they test using a properly calibrated manual gauge? Who authorised the alterations? What what what what what what what
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Jan 28, 2022 02:23
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Hillary 2024 posted:When's Space Force gonna get some fucken space ships. https://twitter.com/ShadowTodd/status/1486081213886447617
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Jan 28, 2022 02:28
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I was so confused i had to solve 4 down to get where it was going. None of the ships i remembered fit there
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Jan 28, 2022 02:32
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Wasabi the J posted:Yes. If you use the French grammatical rules (like the English do because they lost that war), then it’s lieutenants colonel, sergeants major, and whoppers junior. If you use the Germanic family rules (like Americans do) then it’s lieutenant colonels, sergeant majors, and whopper juniors. It comes down to treating it like a noun with an adjective attached, or as a compound noun.
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Jan 28, 2022 16:06
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Jan 29, 2022 04:34
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Encryption does not work that way. Good night.
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Jan 29, 2022 04:38
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FrozenVent posted:Encryption does not work that way. Good night. How do you know? U.S. Space Force Encrypted
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Jan 29, 2022 04:53
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If that dude was telling the truth he'd be too busy keeping anyone from opening the mystery box that might contain off-books crypto gear to be texting ~An SOF Marine Encrypted
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Jan 29, 2022 05:26
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A staff sergeant whose boss is a lieutenant commander? And who spells out E6 staff sergeant? Yes, I would like to form a relationship, comrade! Operational security - it's everybody's business!
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Jan 29, 2022 20:02
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My posts are encrypted
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Jan 29, 2022 20:45
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what a kush gig for an e6
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Jan 29, 2022 21:30
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Vengarr posted:My posts are encrypted
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Jan 30, 2022 01:51
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I encrypt my posts by writing them in an exotic foreign language (English) and running them thru ROT-13 twice, but the second time is in the opposite direction!
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Jan 30, 2022 06:17
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You nerds are working too hard, I just shitpost and never look back 
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Jan 30, 2022 14:59
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Comrade Blyatlov posted:What in the gently caress? Why in gods name didn't they test using a properly calibrated manual gauge? Who authorised the alterations? What what what what what what what Now I'm not an engineer but I always figured some alarms like those there are your signal to OH MY GOD GET OUT OF HERE GET OUT OF HERE NOW while someone else shuts down everything but that's probably me and my soy boy ways talking
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Jan 30, 2022 21:37
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I think the name of the effect is “alarm fatigue” I once had a GPS receiver fail on the bridge. Instead of giving me a “beep beep” and switching over to the secondary, every piece of navigation equipment instead went to “the world has ended” mode. This makes it difficult to diagnose anything, and people get annoyed instead of fixing poo poo. In my case it was just a matter of throwing a switch, for these guys they would have had to go get a whole other set of tools, jeez.
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Jan 30, 2022 22:38
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Yeah, it's kind of baffling. In the terrestrial boiler world, safety devices are sacred and never looked on discouragingly until every other possibility is covered. And you especially don't trust any fancy-schmancy transmitters when your gauges and manometers you carry with you always tell you reality.
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Jan 31, 2022 04:45
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Explosionface posted:Yeah, it's kind of baffling. In the terrestrial boiler world, safety devices are sacred and never looked on discouragingly until every other possibility is covered. And you especially don't trust any fancy-schmancy transmitters when your gauges and manometers you carry with you always tell you reality. Username checks out.
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Jan 31, 2022 05:05
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Explosionface posted:Yeah, it's kind of baffling. In the terrestrial boiler world, safety devices are sacred and never looked on discouragingly until every other possibility is covered. And you especially don't trust any fancy-schmancy transmitters when your gauges and manometers you carry with you always tell you reality. Usually redundant sensors as well. An old fashioned dial gauge somewhere to tell you if your automation transmitters are actually in the ballpark.
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Jan 31, 2022 05:10
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and there's that whole, you know, anti-tamper seal that they broke for no real reason.
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Jan 31, 2022 06:28
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Comrade Blyatlov posted:and there's that whole, you know, anti-tamper seal that they broke for no real reason. How were they supposed to tamper with them if they didn’t break the seal, genius?
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Jan 31, 2022 06:32
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I know you're doing a thing, and I'd normally fake-argue back, but like.... if I'd done that, I would fully expect my chief to be screaming down at me as I walked down the gangway with my bags packed. That right there is a career-ender. Sadly, it was a life-ender, too. 
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Jan 31, 2022 07:19
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OSHA best practices are, as always, written in blood.
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Jan 31, 2022 09:42
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That seems unsanitary, I think ink would be safer
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Jan 31, 2022 11:06
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GotLag posted:That seems unsanitary, I think ink would be safer Yeah but we've got plenty of blood just lying around all over everything.
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Jan 31, 2022 11:32
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Liquid Communism posted:OSHA best practices are, as always, written in blood. This is the main lesson I’ve picked up from the OSHA thread. GotLag posted:That seems unsanitary, I think ink would be safer Safer, but there’s more blood freely available after an accident 
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Feb 1, 2022 13:59
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Icon Of Sin posted:This is the main lesson I’ve picked up from the OSHA thread. On the plus side, if you have enough to write with, you have a reason to write!
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Feb 2, 2022 11:43
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Yep. It's how I explain to the guys I work with, when I get stuck running safety training. "We pay attention to this because some other poor bastard getting killed or maimed produced the rule. Let's not be the cause of the next one."
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Feb 2, 2022 13:17
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Spending some time at Fort Campbell and the shithouse newsletter has an item about an SM who was doing a breaching drill and was very surprised to find out that the charge he primed was the one he put in his pocket instead of the one he put on the door.
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Feb 2, 2022 22:17
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https://www.youtube.com/watch?v=GZyXpodtu9E
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Feb 2, 2022 22:36
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People always get so upset about that's not how grenades work which always confuses me. If you dont have the level depressed pulling the pin should start the process immediately. So you hold down the level. Pull the pin. Toss the grenade. Time starts when the level releases the pin. Am I missing something?
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Feb 3, 2022 02:54
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Phanatic posted:Spending some time at Fort Campbell and the shithouse newsletter has an item about an SM who was doing a breaching drill and was very surprised to find out that the charge he primed was the one he put in his pocket instead of the one he put on the door. A SEAL popped a safety observer in the face with a simunition a few months back. They were told there were two "hostages" in the room, and anybody else was a bad guy. Observer peeked his head around the corner while they were clearing the room.
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Feb 3, 2022 03:04
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Crab Dad posted:People always get so upset about that's not how grenades work which always confuses me. If you dont have the level depressed pulling the pin should start the process immediately. So you hold down the level. Pull the pin. Toss the grenade. Time starts when the level releases the pin. Am I missing something? I mean, I don't know why anyone would grab a grenade by the pin and not the body.
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Feb 3, 2022 03:05
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CainFortea posted:I mean, I don't know why anyone would grab a grenade by the pin and not the body. I was assuming it was snagged on accident idling clutching his annoying and chaffing shoulder straps. Those things are loving annoying.
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Feb 3, 2022 03:12
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Fun Frag Story- Patrol makes contact patrolling Baghdad. An Infantry LT from BN HQ pulls the pin, chucks the frag. Which promptly came back over the wall with the shipping clip/jungle clip (for some who have never dealt hands on: grenades ship with a wire contraption attached to the spoon in addition to the pull ring pin; most troop remove the 'Jungle Clip' before taking them in the field) removed, wounding our BC.
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Feb 3, 2022 05:41
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Phanatic posted:Spending some time at Fort Campbell and the shithouse newsletter has an item about an SM who was doing a breaching drill and was very surprised to find out that the charge he primed was the one he put in his pocket instead of the one he put on the door. This guy did something like that too. This happened in Norway right before or during my demolitions course in 1999, but in a different unit. He was the instructor, and well known to my instructors. This is him 20 years later, when did an interview about turning his life back around after years of depression and substance abuse.  He primed a small lump of HMX with an electric primer and _then_ carried it to the site to connect it to the firing line. Theory I heard was that the wires on the primer probably made contact, making a circuit, and "something" induced a current while he was carrying it in his hand, like the 250w HF-transmitter in a nearby vehicle. My instructors initially swore up and down that he was a good guy, and would never take shortcuts, but welp. Don't prime charges before they're emplaced please. He was kind of a badass after though, he remained conscious, and had to instruct the the 18-19 year old conscripts with him in how to apply tourniquets while waiting for help to arrive, all the while seeing his leg on the ground and with some guts hanging out of an abdominal wound.
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Feb 3, 2022 12:39
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Godholio posted:A SEAL popped a safety observer in the face with a simunition a few months back. They were told there were two "hostages" in the room, and anybody else was a bad guy. Observer peeked his head around the corner while they were clearing the room. I mean…
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