Emirates near disaster on takeoff

[milleR]

Great question, thanks for asking it.

It’s very interesting, I’ve never thought about direct loading on the landing gear at rotation and how it would relate to max tire speed relative to takeoff vs landing before. But I’ve also never flown anything bigger than a Dash 8 so this has been a very educational exchange for me, love it

 

[killbilly]

It’s very interesting, I’ve never thought about direct loading on the landing gear at rotation and how it would relate to max tire speed relative to takeoff vs landing before. But I’ve also never flown anything bigger than a Dash 8 so this has been a very educational exchange for me, love it

The real question is how being on a treadmill affects the forces on the tires.

Er, I'll show myself out....

 

[milleR]

The real question is how being on a treadmill affects the forces on the tires.

Er, I'll show myself out....

Obviously all Newtonian physical exertions on the airframe would be negated due to its being stationary. Duh

 

[awair]

So the question I have is how accurate is this reported Fight Radar 24 (or whatever) data that is showing them still "on the ground" at some high speed? They could easily have had main wheel lift-off at 190 KIAS in a normal slow rotation and then been slowly climbing as the airspeed increased to the reported value.

The FR24 data is based on QNH 1013. Rotation was probably normal with no overrun. The level-off wasn't at 75’, but still low enough to be 'exciting'.

One claim that this was a deliberate joyride is also lacking credibility. Pitch for level flight would have been around 7 degrees, for climb about 11-12. Literally “nothing to see here”. Passengers could have had some interesting views, but possibly not enough to alarm them.

Something happened that night, that was pretty scary for the industry, but not as AvHerald reports.

Also a review of the SOPs might indicate that they are not as bullet-proof as most believe. (Flight Directors on, before MCP Altitude set).

Or it could have been the randomly resetting Alt selector that was supposedly fixed from years ago.?

 

[mikecweb]

 

[Sculprit]

Preliminary report is out: Here


On Feb 17th 2022 the United Arab Emirates GCAA released their preliminary report summarizing the sequence of events:

On 19 December 2021, an Emirates Boeing 777-300ER (Extended Range) Aircraft, registration A6-EQI, operating a scheduled passenger flight number EK231, departed from Dubai International Airport (OMDB), the United Arab Emirates, for Washington Dulles International Airport (KIAD), the United States.

The flight crew composed of four members divided into two sets A and B. Each set was comprised of one commander and one copilot. The Commander of set A operated as the pilot flying (PF) and the Copilot operated as the pilot monitoring (PM) for the flight.

The Commander stated that during cockpit preparation, she noticed that the altitude selector was set to 0000 feet and she selected it to 4,000 feet, which was also verified by the flight data recorder. The selection of 4,000 feet on the altitude selector was in accordance with the planned standard instrument departure (SID) of SENPA 2F1.

At 23:10:29 UTC, the Aircraft lifted off, and at 23:10:40 the landing gears were selected to ‘up’ position (retracted).

The Commander stated that after lift-off, and during climb, she followed the flight director command. However, the Aircraft rate of climb reached to a maximum of approximately 800 feet per minute. The flight crew were not able to adhere to published climb gradient of the SID due to the shallow climb.

At 23:11:01, the takeoff/go-around (TOGA) switch was selected and the flight mode annunciations (FMA) were changed to TOGA/TOGA. The flight directors indicated climb attitude on the Commander’s primary flight display (PFD). A flap 15 over-speed occurred as the airspeed increased towards 250 knots. The flight crew continued to their destination and landed uneventfully.

No damage was found to the aircraft at destination. The commander (42, ATPL, 10,849 hours total, 6,567 hours on type) was assisted by a first officer (26, ATPL, 4,644 hours total, 3,426 hours on type).

 

[Cherokee_Cruiser]

The 737 does it too. If you have 0000 ft in the altitude selector and at basically sea level, putting on FDs first, will get ALT Hold on the FMA. Altitude can be selected to 4,000 ft and you still have altitude hold. Looks like that’s what happened.


Not even gonna start on the topic of a 777 Captain flying the FD without any basic common sense.