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"Hey flight attendant, the propeller lost a screw, it's lodged in my window."

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A screw come loose from the propeller before it headed straight into the window pane by his seat. (www.techeblog.com) Más...

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preacher1
preacher1 13
Pilot may not have ever seen it happen in 25 years of flying but I bet it would cause a person to piss in their pants.
nicholasweber
nicholas weber 0
The pilot would never "see" it happen!!! He's some distance in fron of the propeller :-)
akayemm
Er.A.K. Mittal -1
Without meaning to be offensive or insensitive, was the person who spotted the bolt in any way connected with ' lost and found ' department ?
Moreover such an incident will make glass designers give mile wide grin. Meaning , that's why I designed such a double wall crash proof window !
joelwiley
joel wiley 8
Talk about a bolt from the blue....
nsbeach
This is why I always carry a tube of Blue Loctite in my briefcase!
silcalifano
Make sure it's less than three ounces or the wonderful TSA will get you!
nsbeach
LOL Silverio............
bherring11
Brad Herring 2
While it is not a comforting sight, it not from the PROP. Propellers do not have a single screw on them. The spinner does and the spinner has no effect on flight. The passengers should be happy that the screw did not go into the intake of the engine. That on the other hand would have an effect on flight.
jemillslaw
jemillslaw 0
A spinner cracking and becoming loose or dislodged will sure as hell effect flight. Every preflight inspection checklist I have ever seen for prop a/c tells you to check the spinner and back plate for missing screws and cracks.
joelwiley
joel wiley 2
Clearly the screw was present on the preflight. It made quite an impression on the pax. Had the window failed completely, the 'impression' would have been deeper.
3apa3a
oleg sar 1
Tere Is about a dosen screws on a spinner.
watkinssusan
oh wow..does anyone remember when a dc10 lost an engine back in late 70's because the engine was not bolted on correctly???scary..these things can still happen despite modern technology and faa rules and regulations..we are just human beings after all flying in a metal tube held together by nuts bolts and glue!!!
jonascord
The engine fell off because the engine swap out procedure wasn't followed and the mount was bent, which overstressed the bolts. (I happened to be working for a company 2 miles West of the crash site, near O'Hare, (ORD), that day, and heard a heavy thump as I was walking across the parking lot from the shop to engineering. I turned and saw the black smoke column...)
3apa3a
oleg sar 1
Do not forget Speed Tape.
joelwiley
joel wiley 0
And the political cartoon showing a DC-10 and VW bug with the question
"Which has more bolts holding the engine on?". That was back when I learned why they said
"A Volkswagen owner usually became a Volkswagen mechanic" 8-)
fighter1988
Andrew Merrill 2
I bet that was a brown trouser moment
akayemm
Er.A.K. Mittal 1
brown trouser ! Really ?
wow
jkudlick
Jeremy Kudlick 2
"We'll be fine. That bolt only holds the propeller on the shaft."
leonpesche
Leon PESCHE 1
Those spinner machine screws are locked bi anchor nuts. If it's from there the thread must have sheared off?

Leo
3apa3a
oleg sar 1
There no anchor nuts, just simple screws.
Viperguy46
Jesse Carroll 1
How about the one in Iowa that the rear engine took out all the hydraulics. They ALMOST made it down thanks to some incredible pilots!
Now the are the best Freight haulers in the world because nobody would fly on the!
RetAF
RetAF 0
Yeah, right...I spent 14 years flying the USAF KC10 which is the military tanker version. Great airplane. And you fly what? Enquiring minds and all that.
Viperguy46
Jesse Carroll 0
You must have misunderstood me! I LIKE THE DC-10'S. AS YOU SAY, GREAT AIRPLANE!
I WAS JUST REMEMBERING AN ARTICLE SOMEWHERE AS TO WHY NO 10'S IN THE COMMERCIAL FLEET. Sorry about the yelling hit the caps lock button. Thank you for your service. I spent 7 years crew chief on Helo's for the 149th Aviation group ARNG.Single engine land rating. That's all.
Uh, would you consider "Fuel" and Tankers to be freight haulers.
FedEX loves them also!
jeilers
jim eilers 1
Better check the the prop for nicks and dings. Don't want a crack to start.
Viperguy46
Jesse Carroll 1
Thats one reason I avoid seats by the props. Not from the screw but the buzz saw coming into the cabin which would create a whole new problem!..LOL
leonpesche
Leon PESCHE 1
Surely not from Prop. of the DH Dash 8-400. But if the window cracks, you better have your Seat Belt fastened. If not you might be pushed outside from the diff. cabin pressure, ~ 8-12 Psi.

Leo the Lion
3apa3a
oleg sar 1
The max press diff is under 6 psi
FlyingSubaru84
oliver lebot 1
this post makes me laugh, as first off, that screw has nothing to do with the propeller its self, secondly im sure as shit, that guy didnt not "watch" it fly off the propeller and hit the window,
and thirdly im 100 percent sure that it came from the spinner and NOT the propeller, im sure if you look at the MX log you will find it was recently serviced
mhope100
Michael Hope 5
Based on the aircraft flown by the airline, it would actually be a NAS55604 type screw, with a tri wing slot for installation of the screw. Yes the nut plates that hold these screws in do loose their holding torque and the nut plates do get replaced on a regular basis.
preacher1
preacher1 7
Thank you for sharing all this mx knowledge with us.
GringoZX
Actually, it's a better comment than "holds the prop on" comments. That screw does resemble a standard, countersink MS-series screw (#10) that holds the spinner on. The various props/turboprops that I've worked on typically use 1/2 - 3/4 inch bolts that mount the prop assembly to the shaft flange. Think about the amount of pull a prop puts on the engine and thus airframe.
3apa3a
oleg sar 1
You are correct. That screw appears to come from the spinner - there are no screws or bolts, or nuts on the prop blade.
WALLACE24
WALLACE24 1
I don't know if it is one of the bolts holding the prop but I'm thinking its time to land as the prop may be next. Just me.
GringoZX
Resembles a MS-series screw that holds the spinner on the prop. Props typically use 1/2 - 3/4 bolts to mount to the output shaft flange.
WALLACE24
WALLACE24 3
Ok. But when something spinning real fast starts shedding bolt(s), I would be a concerned pilot.
joelwiley
joel wiley 4
I'd think one would be concerned if one's aircraft began shedding any parts when in operation.
GringoZX
Oh, absolutely some level of concern would be expected. Not knowing what other pieces may be coming apart would be a big concern. I certainly would not just shrug it off. Hopefully, the pilots were familiar enough with that aircraft to be able to logically consider the possibilities of what the issue was. Props require balancing. Depending on the size/mass of the prop assembly, a screw that size may not affect the balance that much to even notice the vibrations in the cabin/cockpit.
bherring11
Brad Herring 1
Thank you GingoZX for a smart comment. Props don't have a single screw on them. They are held on with bolts and they are under the spinner. Planes lose fastners all the time, they just don't normally get slug at a window. It is truly amazing to me just how little people know about airplanes.
preacher1
preacher1 3
People pay to fly, not become airplane experts.
RetAF
RetAF 2
If that is true why so many "experts" posting here about something which they have no knowledge of?
akayemm
Er.A.K. Mittal 1
and yet blow the air of being way beyong ' experts ' ..... sadly
akayemm
Er.A.K. Mittal 1
yes. and when they become experts , they don't pay to ride them, they charge for doing it .... don't they ?
WALLACE24
WALLACE24 1
Not to mention a spinner tearing loose CAN be a serious prob.
preacher1
preacher1 2
me too. LOL
seahawker01
seahawker01 -1
The issue is not the prop but contuined cracking and failure of the window. Spinner screws come out, it happens (I have just been fortunate enough that I never saw one in a window). I'm sure the pilot was nervous and took approiate action. But you don't tell passengers "shit that's scary", you but on a calm face and say "relax, everything is under control."
rmchambers
rmchambers 3
Except the Dash-8 is usually only for short hops and rarely go much about 12,000' anyway (you don't even need pressurization for that altitude) I've flown on many dash 8 trips.. you're in more danger of hearing loss from those engines than you are from an errant fastener coming into the window.
num1tailhooker
Lucio DiLoreto 1
Another reason not to sit inline with the propellers on turbo prop or reciprocating engine aircraft or with the compressor or turbine on pure jets.
paultrubits
paul trubits 3
You guys just cost me $20 to change my seat!
jkudlick
Jeremy Kudlick 3
Only $20? What airline are you flying? :D
alan75035
alan75035 0
Righty tighty, lefty loosey?
runway18escanaba
I bet he's feeling blessed today
egad
James Hodges 0
The message telling me to log in said my comment would be saved. It wasn't. At least I can't find it.
jimquinndallas
Jim Quinn 0
Luckily it came from a point where it was not ingested...

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