Posts about: "MAYDAY" [Posts: 182 Pages: 10]

DDDriver
June 12, 2025, 10:07:00 GMT
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Post: 11898992
Beeb reporting a mayday call was made.

However they're also peddling an "expert" who is already trying to link this to the Max issues
Miraz
June 12, 2025, 10:12:00 GMT
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Post: 11899006
Originally Posted by DDDriver
Beeb reporting a mayday call was made.

However they're also peddling an "expert" who is already trying to link this to the Max issues
The article they are referencing says that the Mayday call was made 20 minutes before the crash.....
DDDriver
June 12, 2025, 10:13:00 GMT
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Post: 11899009
Originally Posted by Miraz
The article they are referencing says that the Mayday call was made 20 minutes before the crash.....
Porto Pete
June 12, 2025, 11:22:00 GMT
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Post: 11899091
There was reportedly a Mayday call. Is there anymore information of the content of this call or was it a Mayday only?
KSINGH
June 12, 2025, 11:49:00 GMT
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Post: 11899115
I\x92ve seen a few reports saying they got out a MAYDAY, seems unlikely to be a flap up instead of gear up if that\x92s the case imho
Porto Pete
June 12, 2025, 12:03:00 GMT
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Post: 11899132
Originally Posted by KSINGH
I\x92ve seen a few reports saying they got out a MAYDAY, seems unlikely to be a flap up instead of gear up if that\x92s the case imho
Very good point.
giblets
June 12, 2025, 12:10:00 GMT
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Post: 11899138
At least one press report stating 'engine failure' was mentioned
Air India pilot said 'engine failure' in mayday call before horror crash | World | News | Express.co.uk

Not seen this anywhere else, and bearing in mind the source, I'd take as a huge pinch of salt, though with the RAT potentially deployed, there may be some credence
FullWings
June 12, 2025, 12:12:00 GMT
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Post: 11899143
How horrible. From what has surfaced so far, it does appear that the aircraft became airborne and got to a reasonable height and groundspeed, within parameters for a normal takeoff. The video with RAT-like audio and the snapshot from another video showing hints of RAT deployment seem to be the biggest clues so far: flaps and gear are a minor issue compared with a serious power loss, although loss of electrical power would trigger the RAT if it uses the same logic on the 787 as earlier Boeings.

That you can hear the RAT on the video over what should be engines at takeoff thrust at that point adds credence to the theory, as does reports of a MAYDAY.
YRP
June 12, 2025, 13:00:00 GMT
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Post: 11899183
Originally Posted by FullWings
How horrible. From what has surfaced so far, it does appear that the aircraft became airborne and got to a reasonable height and groundspeed, within parameters for a normal takeoff. The video with RAT-like audio and the snapshot from another video showing hints of RAT deployment seem to be the biggest clues so far: flaps and gear are a minor issue compared with a serious power loss, although loss of electrical power would trigger the RAT if it uses the same logic on the 787 as earlier Boeings.

That you can hear the RAT on the video over what should be engines at takeoff thrust at that point adds credence to the theory, as does reports of a MAYDAY.

The audio is not great and kind of whiny. Even at the end when the crash happens, it does not sound robust.

Likely: this is not the RAT sound; it is just poor audio pickup.



fdr
June 12, 2025, 13:37:00 GMT
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Post: 11899220
Originally Posted by Porto Pete
The noise certainly matches



Hard to say and the noise could be a fake. It's hard to tell what's real these days.
Originally Posted by ViceSergal
[img]image.jpg[/img]


Pixelation is a bit absurd, but that looks a bit like a RAT to me in the lower right.
Originally Posted by CW247
Just for the record, there is no system on modern Boeing aircraft to prevent the accidental retraction of flaps when too low or slow when airborne. You wouldn't even get a warning on Boeing aircraft that is related to Flaps, you'd eventually get one related to Low Speed or Stall. The Airbus has a safety feature called "Alpha-Lock" which physically stops the Flaps from moving when the AoA or speed? is deemed too low. But that's not a safety net for all flap settings, just the lowest for takeoff. It will save the day in 95% of situations though Mr Boeing (hint hint)

Takeoff config warnings and checklists may not have helped if the flap setting was not enough given the weight and conditions. A good handling pilot could recover from an incorrect flap setting (providing there's no obstacles to deal with), by gently lowering the nose allowing the airspeed to build up before resuming the climb. However, various human factors such as startle and over reliance on automation (my thrust setting must be good) will not help the situation.

In order of likelihood:

1.) Flaps moved instead of gear
2.) Incorrect Flap settings and inability of crew to recover from that
3.) Double engine failure
4.) Some electrical event that distracted them


TE Flaps are extended, flap gaps between the wing and the flap element are observable. This is not an aberration of the spoiler position, you can see the nacelles through the gap, and that means the flap can not be in the retracted position.

An error of the TE flap deployed position, say between flaps 5 or 15 is not going to cause a stall event.

The flap has not been retracted instead of the gear.

Double engine failure... India. birds, always a latent threat. No rudder deflection, no aileron deflection, so it's not a SE problem, any engine issue is affecting both engines.

Pitch control and roll is not compromised in the video. The crew put out a mayday, not sounding like an electrical fault or distraction.

any funerals near by?

Incorrect TO thrust setting would not present in the video as recorded. Low thrust results in low acceleration, and extended distance to rotate. after rotate, low thrust results in low climb rate, and can result in the crew over pitching where the aircraft has obstructions that the crew have to avoid. the video appears to show the pitch increasing at a point where the aircraft is already unable to climb, not the other way round. An outside possibility.

For survivors, any from the aircraft will be a miracle, and mainly from the rear of the plane near door 3 area, if any. Plane is still striking tank traps at 70m/sec +, high ANU, it's not a high survivability event. Occupants in the buildings along the flight path will have a high fatality rate as well. This is going to be a high toll event in the aircraft and on the ground. Bad day at VAAH. RIP.

Last edited by fdr; 12th June 2025 at 17:24 .
mobov98423
June 12, 2025, 13:47:00 GMT
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Post: 11899226
Originally Posted by giblets
At least one press report stating 'engine failure' was mentioned
Air India pilot said 'engine failure' in mayday call before horror crash | World | News | Express.co.uk

Not seen this anywhere else, and bearing in mind the source, I'd take as a huge pinch of salt, though with the RAT potentially deployed, there may be some credence
\x94 And ex senior pilot, Captain Saurabh Bhatnagar, said: "It looks, prima facie, like a case of multiple bird hits wherein both the engines have lost power. The take-off was perfect and just, I believe, short of taking the gear up, the aircraft started descending, which can happen only in case the engine loses power or the aircraft stops developing lift. Obviously, the investigation will reveal the exact reason."
Ash Ghinn
June 12, 2025, 14:06:00 GMT
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Post: 11899247
"On 12th June, 2025, Air India B787 Aircraft VT-ANB, while operating flight AI-171 from Ahmedabad to Gatwick, crashed immediately after takeoff from Ahmedabad. There were 242 people on board the aircraft, consisting of 2 pilots and 10 cabin crew," said a senior DGCA official.

The aircraft was under the command of Captain Sumeet Sabharwal with First Officer Clive Kundar. Captain Sumeet Sabharwal is an LTC with 8200 hours of experience. The copilot had 1100 hours of flying experience, the official further added. The officers gave a mayday call to ATC minutes after taking off. However, they didn't respond to ATC's reply.
PPRuNeUser548247
June 12, 2025, 14:44:00 GMT
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Post: 11899286
Possible timeline (all timing after brake-release)

Rotation +33s
Mayday call +44s, circa 300 ft altitude (ADS-B)
Peak altitude +49s, 625 ft (Flightradar24)
Impact +58s, crash site 1.6 km from runway
ManaAdaSystem
June 12, 2025, 14:59:00 GMT
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Post: 11899300
A mayday call will normally contain information about the nature of the emergency.
The flaps instead of gear is based on the landing gear being down throughout the whole emergency. It\x92s just weird. I get that it may be overlooked in a stressful situation, but when they had time for a mayday call?
So, someone said the 747 will have an early thrust reduction if you retract flaps too early, is this also the case with the 787?
Maltese Falcon
June 12, 2025, 15:02:00 GMT
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Post: 11899305
It was mentioned before but needs mentioning again. If, as reported, a MAYDAY was issued, I think we can discount the "incorrect flap setting" and 'inadvertent flap retraction" theories. A MAYDAY call is an appropriate response to mechanical failure/bird strike etc but generally not what pops into the mind when you realise your pilot error is about to result in a crash.
KSINGH
June 12, 2025, 15:02:00 GMT
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Post: 11899306
Originally Posted by Propellerhead
Aerodynamically it would fit with taking off without flaps - normal rotation and climb until clear of ground effect at around 200ft at which point the lift would drop a lot. It\x92s not a single engine failure as no sign of yaw.
hasn\x92t every jet had a take off configuration warning for about 30 years now? Surely the 787 has something far more advanced than that (electronic checklists) as well as airlines having various SOPs to catch that. Retracting flaps instead of gear is plausible (but as I said above doesn\x92t really align with the apparent mayday call they got out) but taking off with zero flaps would be unthinkable for anything as modern as a Dreamliner surely
Chesty Morgan
June 12, 2025, 15:04:00 GMT
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Post: 11899310
Originally Posted by KSINGH
hasn\x92t every jet had a take off configuration warning for about 30 years now? Surely the 787 has something far more advanced than that (electronic checklists) as well as airlines having various SOPs to catch that. Retracting flaps instead of gear is plausible (but as I said above doesn\x92t really align with the apparent mayday call they got out) but taking off with zero flaps would be unthinkable for anything as modern as a Dreamliner surely
Mayday call could just be a panicked reaction to not having a clue what was happening.
Del Prado
June 12, 2025, 15:06:00 GMT
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Post: 11899313
Looking at the new video and seeing the time airborne I doubt there was time for a mayday call, unless maybe the Captain became incapacitated, has the mayday call been verified?
RiSq
June 12, 2025, 15:41:00 GMT
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Post: 11899368
What are the electrical systems like on the 787? I only ask as there is a very early post where a guy flew the aircraft on the way in and at least in the passenger cabin, it was electrical gremlins galore.

most of the aircraft IFE screens unpowered, call bells not working, no AC, nothing.

What if they were already flying with one of the systems in-op? Aircraft hot on the ground (air temp was 42c) if i recall)

how does the wiring of a 787 and its electrical sources work and is there any potential for it to interfere with A/T if there was an electrical failure, adding in the fact that the 787 is running on lithium packs.

The only thing that would rule out complete electrical failure would be the mayday call - but for those knowledgeable, is there any electrical event that could cause this?

at the risk of sounding daft, its almost as though everything just went off, at 200ft.
7478ti
June 12, 2025, 16:18:00 GMT
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Post: 11899432
Please all... let's get more facts and data before unwarranted speculation about cause or culpability.

That's especially pertinent about questionable aspects like flap extensions used for takeoff, temperature effects, limited runway distance, and other likely irrelevant circumstances.

The "bang", Mayday call, potential RAT deployment, and high alpha touchdown may prove significant, ....if and only if they are later verified by accident investigation.

It is most inappropriate to yet for any professional aviators be inferring any flight crew, airline, or OEM connections whatsoever. Only sympathy and aid for the crew, passengers, families, airline, and those impacted by this tragic crash, and support to the accident investigators, ....should be in our thoughts and prayers at this point.