Tu204 run off runway at Moscow

[Key]

Sounds plausible, Eddy. And the repeatedly-mentioned brake failure just might have to do with the engine failure and a related loss of systems, specifically hydraulics. But again, this is just speculation.

Erik

[Stratofreighter]

Some more photos of the aftermath:
http://airnation.net/hangar/threads/tup ... -vko.1499/

And also this:

Tu-204 directive warns pilots to check thrust-reverse status

2 hours ago

Russian authorities have ordered immediate action by Tupolev Tu-204 operators in the wake of two runway overruns by Red Wings aircraft, including the fatal accident at Moscow Vnukovo.

Federal aviation authority Rosaviatsia has issued an airworthiness directive highlighting the 29 December crash at Vnukovo - in which five crew members were killed - and an incident on 21 December during which another Red Wings Tu-204 rolled beyond the end of the runway while landing at Novosibirsk.

Rosaviatsia says Tupolev has developed a technical response for Tu-204 and Tu-214 twinjets, powered by Aviadvigatel PS-90 engines,
which centres on lubricating mechanisms linked to limit-switches on the landing-gear,
notably during low-temperature operations.

But the authority has also ordered a temporary amendment to the aircraft operating manual regarding the operation of thrust-reversers on the type.

It points out that the crew should check for an early indication that the reverser system is operating correctly.

After touchdown, with the throttle reduced to idle and the spoilers deployed,
the thrust-reverse control lever should normally be moved,
over the course of 1-2s,
initially to the 'small reverse' position.

The engine instrument panel should indicate, in yellow text, that the thrust-reverse lock has opened and then -
with the symbol 'REV' in green text - that the reverser is active, says the manual.

Once the crew has confirmed this, and the correct alignment with the runway,
the nose should be lowered and maximum reverse-thrust engaged.

When the speed has reduced to 70-75kt (130-140km/h) the crew should restore the reverser control to the 'small reverse' position and, at about 25kt, disengage it.

But the operating manual specifically warns the crew to check that the reverser is active, with the presence of the green 'REV' indication,
before committing to maximum reverse thrust.

If the indication does not appear after the control lever has been moved to the 'small reverse' position, the warning says,
the pilots should "immediately" disengage the lever and continue the roll-out without reverse thrust.

The Novosibirsk incident involved a Red Wings Tu-204 registered RA-64049, which had arrived after flight WZ123 from Moscow Vnukovo.

Red Wings' flight WZ9268, a ferry service from Pardubice, had been operated by another Tu-204 (RA-64047) and was carrying just eight crew members when it overran at Vnukovo.

http://www.flightglobal.com/news/articl ... us-380606/

[EC]

from the Avherald.com

On Jan 24th 2013 Russia's MAK reported that the captain was pilot flying during the landing on Vnukovo's runway 19. The computed Vref was 108 knots, the Vapp taking winds into account was set at 118 knots for flaps at 37 degrees and slats at 23 degrees and a landing weight of 67.5 tons. The aircraft was correctly configured, the center of gravity was at 26.5% MAC within limits. On final approach the aircraft was flown manually without autopilot and autothrust, the flight director however was used, the aircraft proceeded on final approach without any significant deviations. The aircraft crossed the runway threshold at 50 feet (15 meters) at 134 KIAS, after descending through 12 feet the aircraft took 10 seconds to touchdown, the thrust levers were moved to idle about 5 seconds prior to touchdown, which occurred at 118 KIAS about 900 meters down the runway (3060 meters length) with the left main gear signalling compressed. A gust of 22 knots from the right arrived at that time, the vertical acceleration reached +1.12G. 3 seconds after the left main gear signalled compressed the nose gear was lowered onto the runway, the right main gear still signalled not compressed. Almost simultaneously with lowering the nose gear the thrustlevers were moved to maximum reverse thrust in one move and the brakes were applied. Both thrust reversers did not deploy, both engines however spooled up to about 90% N1 delivering nominell thrust, however forward instead of backward. Neither spoilers nor air brakes automatically deployed, too, the crew did not deploy spoilers manually. Maximum brakes pressure was recorded for the left hand brakes with no pressure in the right hand brakes. About 2 seconds after the thrust levers had been placed at maximum reverse thrust the flight engineer called the thrust reversers had not deployed. About 7-8 seconds after touchdown the aircraft reached a minimum speed of about 104 knots, the thrust levers were taken out of reverse after being in reverse for 8 seconds, the airspeed had increased to 123 KIAS at that time causing further "unloading of the gear", the aircraft began to oscillate in roll from about 4.5 degrees left to about 2.6 degrees right causing that at no time both main landing gear legs were compressed simultaneously. Brakes were ineffective as brakes pressure was only applied with the gear leg reporting compressed. 5 seconds after the levers were moved out of reverse they were moved again into reverse, again neither thrust reverser deployed and the engines accelerated to 84% N1, about 4 seconds later the levers were moved out of reverse again, the aircraft was now about 950-1000 meters short of the runway end. The crew now attempted automated brakes, the thrust levers were placed at minimum reverse thrust. 32 seconds after touchdown the aircraft went past the end of the runway at a speed of 111 KIAS, the flight engineer shut down both engines by the emergency handle. Following the exit onto soft ground both main gear legs signalled compressed, the spoilers, air brakes and thrust reversers deployed, the aircraft however impacted the slope of the ravine at a speed of 98 knots.

rgds
EC

[Key]

A very sad aviation story, seems like a well-functioning aircraft was manoeuvred into this crash. Training, experience, CRM et cetera... lessons to be re-learned?

Erik

[Biondina]

And to finish the aftermath of the crash:

On Feb 1st 2013 Rosaviatsia announced that the air operator's certificate of Red Wings is being suspended effective Feb 4th 2013. The decision was made after an unscheduled examination of the airline's flight operations and maintenance activities between Jan 10th and 16th found "numerous significant violations in the organisation of flight operations, aircraft maintenance, pilot training and other systemic shortcomings, evidenced by the incident on Jan 29th 2013 caused by crew actions, see Incident: Red Wings T204 at Moscow on Jan 29th 2013, thrust reverser did not correctly open on landing. In addition Rosaviatsia reasoned that Red Wings lack the financial resources to provide ongoing operations and thus does not allow to maintain a proper level of safety.

source AVHerald.