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Jon Ostrower @jonostrower.com

There is a good amount of detail in the 15-page report, but these are the key paragraphs. @theaircurrent.com's report for reference: theaircurrent.com/aviation-saf...

As per the EAFR data, the aircraft crossed the take-off decision speed V1 and achieved 153 kts IAS at 08:08:33 UTC. The Vr speed (155 kts) was achieved as per the EAFR at 08:08:35 UTC. The aircraft air/ground sensors transitioned to air mode, consistent with liftoff at 08:08:39 UTC. The aircraft achieved the maximum recorded airspeed of 180 Knots IAS at about 08:08:42 UTC and immediately thereafter, the Engine 1 and Engine 2 fuel cutoff switches transitioned from RUN to CUTOFF position one after another with a time gap of 01 sec. The Engine N1 and N2 began to decrease from their take-off values as the fuel supply to the engines was cut off. In the cockpit voice recording, one of the pilots is heard asking the other why did he cutoff. The other pilot responded that he did not do so.
jul 11, 2025, 8:26 pm • 89 36

Replies

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trenttdk.bsky.social @trenttdk.bsky.social

The switches are spring-loaded, you have to lift them up, against spring pressure, in order to move them

jul 12, 2025, 1:09 am • 0 0 • view
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Burkhard Domke @rlhdlw.bsky.social

High time to mandate cockpit video recorders. It‘s a total anachronism thar we still have to analyse audio drama leaving room for interpretation.

jul 12, 2025, 6:14 am • 4 0 • view
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Brian @pacificatiler.bsky.social

Is there any computer control over these switches? Are they 100% manually controlled?

jul 12, 2025, 4:13 pm • 0 0 • view
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kezme @kezme.bsky.social

The switches in question are mechanical switches that must be operated by hand. For the switch to change position it must be pulled outward against a spring mechanism, then moved.

jul 15, 2025, 1:13 pm • 1 0 • view
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Brian @pacificatiler.bsky.social

No computer override means one of the pilots had to do it? Can a person shut both off at the same time? I ask due to how simultaneously they were shut down.

jul 15, 2025, 5:48 pm • 0 0 • view
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kezme @kezme.bsky.social

Well anyone on the flightdeck could - though the preliminary report made no mention of anyone else being present. Switching both to CUTOFF one after the other is normal procedure on the ground at the end of a flight.

jul 16, 2025, 1:38 am • 1 0 • view
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Matt @gobears.bsky.social

The protective brackets that prevent those fuel switches from accidentally being moved to CUTOFF, are they engaged automatically? Is there anyway to accidentally remove those?

jul 11, 2025, 8:47 pm • 0 0 • view
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Justin (ruins the friendship) @lightsofmanhattan.swifties.social

everything i've read and seen pictures of online indicates it is actually impossible to do this accidentally, especially two in succession within the same second

jul 11, 2025, 9:30 pm • 5 0 • view
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A moose in a kaboose @kaboosemoose.bsky.social

The article linked in the skeet has this infographic

787 Engine Fuel Control Switches infographic
jul 12, 2025, 12:28 am • 3 0 • view
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Anthony @yeahbutnahbut.bsky.social

just so we’re clear…turning off the fuel is bad, right?

jul 11, 2025, 9:16 pm • 0 0 • view
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Walter @uwsp.bsky.social

Damn

jul 11, 2025, 8:30 pm • 0 0 • view