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KC-135 Pressurization Maintenance Mishap Slide Show



Uploaded by: ATFSCrash
Video Description:
There is a correction at the end of the text description, that seems to correct the transcript.
Transcript of text read by Steven Hawkins. Joking; it really isn't Steven Hawkins What a mess, it is a miracle nobody was injured. This is an example of what happens when we do not pay attention to detail, and do not follow instructions and checklists! A KC-135 Aircraft was being pressurized a
t ground level. The outflow valves which are used to regulate the pressure of the aircraft were capped off during a 5 year overhaul and never opened back up. The post-investigation revealed: that a civilian depot technician who, "had always done it that way," was using a homemade gauge, and no proce
dure. The technician's gauge didn't even have a max "peg" for the needle and so it was no surprise he missed it when the needle went around the gauge the first time. As the technician continued to pressurize the aircraft, and as the needle was on its second trip around the gauge the aircraft went "b
oom" - the rear hatch was blown over 70 yards away, behind a blast fence! An incident like this is never funny and is further regrettable when we consider that this mistake is one that we (the taxpayers) will end up paying for. Fortunately, no one was reported as being injured. This was a good "Le
ssons Learned" for making sure we have trained people, who have the right tools, and who are following detailed procedures. And it should serve as a reminder that just because you've always done it that way, it does not make it the "right" way! --------- Allegedly by HerkMeck (I took the liberty
of rewording) Allegedly: Ground man suffered back injuries, the crew inside aircraft had the eardrums ruptured. The pressure relief valves were installed BACKWARDS, which would in effect block the venting air.


Tags for this video: Decompression Explosive KC-135 Mishap Pressurization Safety

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Array ( 9 months ago by ATFSCrash)
Thanks HerkMeck
It wouldn't surprise me if you're right. I have always have been suspicious of the wording "no REPORTED injuries". The wording seems to suggest that there were possible unreported injuries. Putting the valve in backwards would in effect be blocking the venting air. I preferred your wording, howeve
r it should also include the knowledge that that in effect blocks the air.
So you know about ... ( 9 months ago by ganu29)
So you know about the "E" model 135's having engine strut problems? Is that what you're talking about? You DO know that the "tanker shuffle" was the result of the "E" being phased out. I bet that you're some kinda active duty kid who thinks that the Guard is full of idiots. I have 12 years experience working both depot-level maintenance (not at Tinker) and Guard maintenance on the 135's.
Trust me, if active ... ( 9 months ago by ganu29)
Trust me, if active duty had maintainers with an average of 10 years experience (and yes, guard guys work the jets 40 hours a week) their jets would fly right. What does active duty do to a guy with 10 years experience? He's actually taken off the flight line WELL before he gets 10 years in. But what do I know, I've only had to fix active duty jets on TDY's cause the young active E-4's and E-5's hardly knew their systems.
135R outflow valves ... ( 9 months ago by ganu29)
135R outflow valves do not operate on AC voltage. The entire 135R pressurazation system is independent of electricity once the air has entered the cabin. Refer to 1C-135(K)R-2-3GA-1
Classic! I love it! ... ( 9 months ago by calaiscruiser)
Classic! I love it! AND well put! Shame about the loss of the Aircraft tho.
Steven Hawking ... ( 9 months ago by OnTheRun167)
Steven Hawking makes this whole video lol
I'm curious as to ... ( 9 months ago by ganu29)
I'm curious as to what you mean by "backwards." You see, I work as an Electro/Environmental Specialist on the 135 and have been doing so for the past 8 years (which means that I work on this same pressurazation system) I currently possess 7-level/Red X certification in 2A6x6, and before that I worked as a civilian for 6 years performing depot level maintenance on the 135 at ANOTHER facility (not Tinker.) Your description of "backwards" seems very unlikely, if not impossible. Please explain.
After I read my ... ( 9 months ago by ganu29)
After I read my earlier post I see that it seems somewhat rude. Not my intentions, but I am curious Herk, as to how the valves were installed backwards. You see, simply installing it 180 deg out will place it UPSIDE-DOWN. That's the only way it could be backwards but now the fittings are outside of the aircraft. If it was rightside-up, the sensing lines wouldn't come close to lining up (making the error extremely obvious.) That's all. Thanks ATFS for pointing out the tone of my earlier post.
how come when you ... ( 8 months ago by PAELofDI)
how come when you see a plane blown to peices, on fire, upside down, sitting on its nose, or ass it always says ANG on the tail...
GO GUARD!!! 116th MXS BITCHES
Wasn't that the ... ( 8 months ago by SenorSpode)
Wasn't that the Asian guy from South Park?
I love it when they ... ( 8 months ago by 1hijax)
I love it when they referance the manual.... the T.O.s its all in the T.O. and the GA to boot! Good Post!
tax payers money ... ( 7 months ago by khalid6591)
tax payers money gone with the wind
This airplane ... ( 6 months ago by pwhfirefighter)
This airplane belonged to the 186 ARW and BrynMawYamBag you need to get your facts straight. MS Air National Guard did not destroy this airplane, Depot maintainers did!!!!!
This is a response ... ( 6 months ago by pwhfirefighter)
This is a response to BrynMawrYamBag. You need to get your facts straight. Yes this tanker belonged to the 186 ARW Mississippi Air National Guard, but the fact is Depot Maintainers destroyed this jet, not the Air Guard. I am a crew chief in that unit and have crewed that very airplane. And I would put our unit up against any unit in the whole U.S.A.F. We have proven we can maintain tankers as good or better than the rest!!! Politicians cost us our tankers, not our abilities to maintain!!!
Ah, this reminds me ... ( 5 months ago by buckeyemike20)
Ah, this reminds me of tech school. Now all I need is the C-17 mishap at Charleston and the stroll down memory lane is complete. Yay ignoring tech data!
And to the idiot ... ( 4 months ago by buckeyemike20)
And to the idiot down there putting down the Guard. Go to Red Flag and climb up into an AD jet. Then go climb up into a Guard jet. Then tell me who doesn't take care of their planes.
I didn't know ... ( 4 months ago by zee339)
I didn't know Stephen Hawking did voiceovers. Cool.
Want to hear a ... ( 4 months ago by familiartoy)
Want to hear a funny one, this actual airvraft was to be one of my jets, in the USAF. An ex-Elec/Enviro Sgt
Capped for check ... ( 3 months ago by knsbeachy)
Capped for check part of the tech data; NOT backwards; if not capped, pressure check FAILS.
Engine, is "short cut", against tech data; "air cart" is to be used.
Two guys in cockpit, they felt AIR rush by, failure in the back. Why back injury, they looked fine. No ear problems, going up is free, coming down is not. Ear problems?; would be in pain as the pressure rose, not as it leaves.
Someone in B-52 accident, same time doing maintenance/pressure work, that is the back injury.
My unit just got a ... ( 3 months ago by rickski8014)
My unit just got a few Gaurd jets. They look great inside but the maint that was done is CRAP!!!! Wrong parts installed, cracks all over, and a bunch of over due TCTO'S.
Was the depot ... ( 3 months ago by cdfgh1111)
Was the depot repair military , civil service,
or civilian contractor ?
LOL ( 2 months ago by KevCarrico)
LOL
look at the tail of ... ( 2 months ago by Dccamo)
look at the tail of the aircraft. No tail stripe. If this was at an ANG unit there would be a tail stripe. How do I know? Well that stripe is appart of my job. On top of it if you listen, Steven Hawkings said a DEPOT MAINTAINER.
From California ... ( 1 week ago by jetmech2QC)
From California right?



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