“Stabilizer trim is inoperative”. United Boeing 737 has trim issue at Newark. Real ATC
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- Опубліковано 8 чер 2024
- THIS VIDEO IS A RECONSTRUCTION OF THE FOLLOWING SITUATION IN FLIGHT:
30-APR-2024. A United Airlines Boeing 737-900 (B739), registration N63890, performing flight UAL1215 / UA1215 from Newark Liberty International Airport, NJ (USA) to Las Vegas Harry Reid International Airport, NV (USA) after departure reported flight control issue, requested to stop climb at 4000 feet and decided to return back to the airport of departure. Later the flight crew declared an emergency and reported stabilizer trim inoperative. The airplane landed safely on runway 22 left at Newark Liberty International Airport.
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Image from thumbnail was provided by a passenger.
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Timestamps:
00:00 Description of situation
00:17 United Airlines flight 1215, Boeing 737, contacts Departure after takeoff from Newark
00:54 The flight crew reports flight control issue and decides to return
01:45 The pilot declares an emergency. “STABILIZER TRIM IS INOPERATIVE”
03:01 The airplane was transferred to the frequency of Approach controller
04:27 United 1215 contacts Tower controller
04:59 Landing at Newark. Communications on the ground
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THE VALUE OF THIS VIDEO:
THE MAIN VALUE IS EDUCATION. This reconstruction will be useful for actual or future air traffic controllers and pilots, people who plan to connect life with aviation, who like aviation. With help of this video reconstruction you’ll learn how to use radiotelephony rules, Aviation English language and general English language (for people whose native language is not English) in situation in flight, which was shown. THE MAIN REASON I DO THIS IS TO HELP PEOPLE TO UNDERSTAND EVERY EMERGENCY SITUATION, EVERY WORD AND EVERY MOVE OF AIRCRAFT.
SOURCES OF MATERIAL, LICENSES AND PERMISSIONS:
Source of communications - www.liveatc.net/ (I have a permission (Letter) for commercial use of radio communications from LiveATC.net).
Map, aerial pictures (License (ODbL) ©OpenStreetMap -www.openstreetmap.org/copyrig...) Permission for commercial use, royalty-free use.
Radar screen (In new versions of videos) - Made by author.
Text version of communication - Made by Author.
Video editing - Made by author.
HOW I DO VIDEOS:
1) I monitor media, airspace, looking for any non-standard, emergency and interesting situation.
2) I find communications of ATC unit for the period of time I need.
3) I take only phrases between air traffic controller and selected flight.
4) I find a flight path of selected aircraft.
5) I make an animation (early couple of videos don’t have animation) of flight path and aircraft, where the aircraft goes on his route.
6) When I edit video I put phrases of communications to specific points in video (in tandem with animation).
7) Together with my comments (voice and text) I edit and make a reconstruction of emergency, non-standard and interesting situation in flight.
I love listening. One recommendation is to separate the statement of departure and destination airports from the others just for a quicker read. Thank you!
Guys must have had an early tee time for something. That’s the fastest checklist I’ve seen.
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3:01 New York Approach, United 1215 *Emergency* (he left that last part off).
How did that affect the outcome? It didn't. At least you didn't cluck because he didn't say Mayday.
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@@RLTtizME - attitudes like yours 👎
@@carlyellison8498 Oh boy...a good random spanking. Are you a "professional"?
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Turn left 190?
He said right. Subtitles are incorrect.
United twarlararla... 1215
I’m not a pilot so would someone be kind enough to explain why an inoperative stabilizer trim would cause an emergency? Thank you
Mentour pilot could help you with that one , brilliant channel .
Inoperative trim could cause a problem if it was causing an out of trim condition that disabled the autopilot or caused continuous manual override by the pilot. (Not a pilot and could be better explained by one.)
The stabilizer trim controls the entire pitch attitude of the aircraft and reduced control forces needed for the elevator. If the stabilizer is out of trim the aircraft could become impossible to control. The manual trim works, but that is a huge workload. I’ll be diverting as well.
Just want to add on to the other comments that the airplane is going to want to go up/down based on where the stabilizer stuck. If they got it in position during the climb and then it didn't move from there, the aircraft is going to naturally keep climbing and you're going to have to push really hard to get it to level off, much less descend if you can't adjust it manually. Similarly, if it got stuck during descent, getting the plane to climb is going to be really difficult. So there are some real controllability issues with stabilizer issues. Alaska Airlines 261 is an extreme example (where the entire assembly failed causing the aircraft to get stuck in a dive), Republic Airways 4439 is one where the stabilizer worked opposite of what the pilot wanted. Mentour has videos on both.
Stabiliser has quite a large amount of leverage when compared to the elevator's effect (not enough to overide but enough to make it difficult to fly normally) . Think mcas...
United wanted to round off April with one last mech failure