Thumpalumpacus
Major
I thought the doors needed juice to open. This is why I don't work for the FAA.
Azerbaijan Airlines plane crashes in Kazakhstan
- Thread starter DerAdlerIstGelandet
- Start date
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I thought the doors needed juice to open. This is why I don't work for the FAA.
- Thread starter
- #22
And on the topic of aircraft losing hydraulics because of shrapnel damage, thanks to a previous accident all modern aircraft have redundancy and failsafes built into them.
United Flight 232, a DC-10crash landed in 1989 at Sioux Gateway Airport in Sioux City, Iowa, after suffering a catastrophic failure of its tail-mounted engine due to an unnoticed manufacturing defect in the engine's fan disk, which resulted in the loss of all flight controls. Of the 296 passengers and crew on board, 112 died during the accident, while 184 people survived.
en.m.wikipedia.org
Since then all airline manufacturers design hydraulic fuses that isolate systems to prevent total loss of hydraulics power, and no longer route hydraulic systems together so that the likelihood of all three systems failing is rare.
United Flight 232, a DC-10crash landed in 1989 at Sioux Gateway Airport in Sioux City, Iowa, after suffering a catastrophic failure of its tail-mounted engine due to an unnoticed manufacturing defect in the engine's fan disk, which resulted in the loss of all flight controls. Of the 296 passengers and crew on board, 112 died during the accident, while 184 people survived.
United Airlines Flight 232 - Wikipedia
Since then all airline manufacturers design hydraulic fuses that isolate systems to prevent total loss of hydraulics power, and no longer route hydraulic systems together so that the likelihood of all three systems failing is rare.
- Thread starter
- #23
Nope, there is a mechanical extension for emergencies. And…
Gravity
On the aircraft I would perform tests on, the uplocks would mechanically disengage, allowing the gear to swing down with gravity, and then a mechanical handle was used to move the gear the rest of the way into the downlock position. There are other aircraft with emergency hydraulic reservoir's not part of the regular system just to extend the gear as well.
MiTasol
1st Lieutenant
Emergency extension without hydraulic or electric power is a certification requirement on all transport aircraft. On some the crew must use a hand crank and a winch built into the floor to close the main gear doors enough to prevent them dragging on the runway.
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Everything We Know About What Led Up To The Azerbaijan Airliner Crash
The passenger jet crashed after being struck with shrapnel from a Russian air defense system according to preliminary reports and the head of Ukraine's intel service.
www.twz.com
MiTasol
1st Lieutenant
And on the topic of aircraft losing hydraulics because of shrapnel damage, thanks to a previous accident all modern aircraft have redundancy and failsafes built into them.
United Flight 232, a DC-10crash landed in 1989 at Sioux Gateway Airport in Sioux City, Iowa, after suffering a catastrophic failure of its tail-mounted engine due to an unnoticed manufacturing defect in the engine's fan disk, which resulted in the loss of all flight controls. Of the 296 passengers and crew on board, 112 died during the accident, while 184 people survived.
United Airlines Flight 232 - Wikipedia
Since then all airline manufacturers design hydraulic fuses that isolate systems to prevent total loss of hydraulics power, and no longer route hydraulic systems together so that the likelihood of all three systems failing is rare.
and to prevent loss of hydraulic power when one engine is shut down or one system pump fails there are units that use the other (or another) engines system to drive one or more pumps in the system that has lost its normal pressure source.
- Thread starter
- #27
Absolutely, and all of these redundancies and designs are designed in blood.
- Thread starter
- #28
Thats how our aircraft were.
- Thread starter
- #29
No denying it. Russia brought down another civilian commercial aircraft.
MiTasol
1st Lieutenant
Now I am just waiting for the Russians to "prove" that it was not the Russians that shot it down but the Ukrainian Azov mother and daughter.
