Passenger plane crashes in Russia!

[Theis]

Nearly 150 people, including many children, are feared dead after a Russian airliner crashed in Siberia.

http://news.bbc.co.uk/2/hi/europe/5162082.stm

A real disaster...

[born_2_fly]

According to Anet, everyone survived  ::)

Airbus A-310 Crash In Irkutsk

[Triple_7]

Wrong...CNN just talked about it.  Currently 53 made it out alive, 120 dead, 25 unacounted for  

[C]

According to Anet, everyone survived  ::)

Ah, A-net, the well known place where people think they know what they're talking about...

Sad news...

[Ivan]

Looks like a cascade failure... maybe hydraulics. Some of the reports sound like they did try the reversers which didnt deploy correctly... eventually ending up running at an extra high setting (no wheel brakes) whitout the mechanics in place, which is basically normal flying mode (and the resulting acceleration again)

[Mees]

I seriously don't think this plane could've just sled off the runway, Juli 1 this plane was A checked with a certified company in Moscow, and earlier Lufthansa D checked it, must be Russian flying.....

[Nexus]

Looks like a cascade failure... maybe hydraulics. Some of the reports sound like they did try the reversers which didnt deploy correctly... eventually ending up running at an extra high setting (no wheel brakes) whitout the mechanics in place, which is basically normal flying mode (and the resulting acceleration again)

Reversers shouldnt be needed anyway.
And how do you explain 3 completely independent hydraulic systems malfunctioning at the same time, and btw you will always have a backup system that provides braking. (Alternate braking)

[Ivan]

Alt brakes were recently subject to an AD...
And if you lose brakes on a semi-flooded runway the only thing left is the reversers (which failed to move into position)

Survivor accounts say that the plane did accelerate before slowing down again just before impact...

[Nexus]

I still believe he landed too far, and tried to go around but realized he couldnt make it.

[Woodlouse2002]

Reversers shouldnt be needed anyway.
And how do you explain 3 completely independent hydraulic systems malfunctioning at the same time, and btw you will always have a backup system that provides braking. (Alternate braking)

Are they completely independent? They don't rely on the same reservior or anything like that?

Not that I know anything about aeroplanes. Just a teenie bit about hydraulics.

[Nexus]

Yes, three systems with each own reservoir tank.
The A310 has BLUE, GREEN, and YELLOW as their hydraulic systems.

GREEN reservoir is located at the main gear, and usually holds 17 litres of hydraulic fluid

BLUE is inside the left wingroot, and houses 12litres

YELLOW reservoir located inside right wingroot, 18.5 litre tank.
the RAT (ram air turbine) takes its hydraul fluid from the YELLOW system, which has a 3 litre reserve, just for RAT operations.