Accident Review TBM 700DT Airplanes typically don't fall out of the sky!

[Music] on 20 august 28 21 a tbm 700 crashed near urbana ohio following a steep descent and impacting after impact and then impacted a road before disintegrating what the heck airplanes don't fall out of the sky stick with me on flywire as we look at the crash of this tbm-700 [Music] hi i'm scott perdue and today on flywire we're going to look at the crash of the tbm 700 delta tango just outside urbana ohio very close to grimes field which is the airport for that town the airplane a tbm 700 was bought by the pilot about nine days previously and the pilot had completed about 15 and a half reportedly 15 and a half hours of dual training and this flight was apparently his first solo in the airplane the flight originated at erie ottawa airport port clinton ohio and the destination was a cincinnati municipal airport easy for you to say in ohio the flight proceeded normally on an ifr flight plan and the accident airplane climbed to 20 thousand feet for the transit down to cincinnati there was no significant weather along the flight path the center controller then directed a descent from flat level two zero zero twenty thousand feet to twelve thousand possibly eleven it's a little unclear the flight then changed from to columbus approach control and was assigned ten thousand feet the approach controller noted the left turn has the airplane descended through twelve thousand one hundred and inquired the pilot multiple attempts to contact the pilot ensued but no further communication occurred approach good afternoon thousands but there's a disclaimer the feet yes they're clear guys lunken but there's a couple of personnel zones up near midtown airport and waynesville airport if you're familiar with the factory around those that's the one to direct next lunch into 10 000 speed templates 700 columbus approach seven zero zero delta columbus approach if you can hear me acknowledge is your adoption of columbus approach again seven zero zero tango columbus approach a witness about two miles south of the accident location observed the airplane at high altitude and a nosedive descent toward the ground pretty much his words he reported the airplane was not turning or spinning it was headed straight down further he observed no signs of distress no smoke or fire or parts coming off the airplane he thought the engine was at full throttle kind of hard to tell he did not witness the impact as the airplane descended behind some trees from his line of sight the faa ntsb field agents noted that the airplane impacted trees two power lines and the terrain first in the left wing low attitude the initial ground scar located in a residential yard contained separated components of that left wing the airplane then crossed a highway struck trees in a ditch continuing into a mature potato and soybean field farmer's field and the airplane wreckage was scattered along a distance of 2050 feet along a magnetic degree track speed was likely greater than 300 knots the adsb data available on normal internet sites terminate with the airplane heading roughly south at 12 100 feet this is very nearly worthless in determining what happened in the final moments of the flight let me do a side note about heidi how adsb works adsb out is mandated in airplanes that fly at certain airspace and the faa retains one second data for every single one of those flights certainly flight and the flight levels count as that category and the accident airplane had ads fiat installed the vast majority of ads receivers are ground based and subsequently most airplanes have the adsp antenna located on the bottom of the airplane if your airplane does do a lot if the airplane does do a lot of open water international flying where satellites monitor the adsp transmissions a top mounted antenna is required diversity i think is what they call it for most of your airplanes a bottom mounted antenna is sufficient the adsb box has to have a was out it has half g was gps in it so it can then send the signal containing its gps position accurately as well as the pressure altitude and all that and that locates the airplane in a very precise manner and the air traffic control integrates that information into traffic displays and then as i said records every second of data keeps it the kicker is the gps signal is satellite based and has a very weak signal so the antennas for the gps are located on top of the airplane normally this is not a problem most folks have a tendency to keep the top of the airplane oriented up this keeps the antennas pointed in the right direction i know this in the failure modes because i go upside down often in my aerobatic bonanza and have become familiar with the data dropouts what they look like generally speaking the only thing that can make an airplane fall out of the sky is a loss of control precipitated by a flight control departure a critical separate apart separating from the airplane an upset of some kind or a pilot-induced unusual attitude which i guess is an upset as well the witness statement gives us some key information he reported that the airplane was in a steep steep dive not spinning or turning nothing falling off in the engine making high power for the moment this rules out a loss of control in flight due to a flight control discontinuity or a major component failure departure of the airplane this leaves us with an upset of some kind okay another interesting thing about adsb is that the government is not the only entity that collects adsp data although flightaware people like flightaware and flight radar 24 only display government adsb data on their websites unless of course you're willing to pay big bucks particularly to flightaware to access what is known as inlet data that's it's kind of interesting so there are enthusiasts out there that track virtually everything and for example in england the reggie spotters log train data some reggie spotters they log aircraft tail numbers and such in detail when i was stationed at raf lakenheath in the uk i was very concerned about the operational security aspects of all these enthusiasts who we don't know who they are logging movement data for air force airplanes pretty hard to stop glad the english on our side i hope they stay that way these days there are no there are adsb enthusiasts and all you need is a raspberry pi computer and some software and an antenna and then you can combine your data with that of thousands of other enthusiasts and keep tabs on everything airborne or come very close to it no matter if you tell the fa you want to be secret i've started checking on these sites when i see dropouts in the adsp data that i'm trying to use on flightaware when i go upside down in charlie my aerobatic my aerobatic bonanza i noticed two things quite often the gps antenna will lose its view of the sky long enough and the gps will stop working for a while that kills the adsb i also notice that the adsp drops out they're usually faster than the gps because the antenna is no longer pointed at the ground these dropouts can show in a few different forms most internet websites will continue to compute the track of the airplane toward its file destination extrapolating the flight path but that's not real what is real is how frustrating that is to me and but also what is real in the inlet data often shows the dropouts in conjunction to additional adsp ads not retaining the government database for 700 delta tango i noticed the same 80sp dropout pattern that i've seen from my own aerobatic flights in my f-33c for 700 delta tango we see dropouts and then two additional hits not seen on the other public data files after that hit at 12 100 with a decent rate of 1300 feet per minute heading 180 there are two more hits one at 10 925 feet heading 154 degrees with a decent rate of 11 712 feet per minute and the last one at 91.50 heading 154 degrees with a decent rate of 23 104 feet per minute that's screaming this is significant and this is probably the point which the witness first observed the accident airplane i think the evidence is pointing to an upset leading to this it is a loss of control but it's more of a controlled flight into terrain that on the end it's important to note that this wreckage was along a 275 degree track and the left-wing touchdown touched the ground first followed by the rest of the airplane then it disintegrated energy what it says to me is that the pilot was trying to regain control of the airplane he was just too late there had to be some rolling happening during the decent because the last 80 sbi scene had the airplane in a 154 degree heading at 303 knots at 8 500 feet above the ground that takes roughly 22 seconds to hit the ground from that point at that speed and that time the airplane probably it did turn 121 degrees to the right then establish the left anchor probably 10 to probably 10 degrees or more just prior to the impact what kind of upset was experienced to result in that situation you know i don't have the answer and we won't see one from the ntsb for another two years if ever but i think i i can't tell you what i think i don't think it was a failure of the airplane i have a few hours into tbm 700 and a few more on a 910 and i can tell you that it's probably the most amazing private single-engine airplane ga it has excellent handling and it is fast it's it's amazing airplane what it is not is aerobatic the handling is so good that you might think it's a real performer but it's not designed for aerobatic kind of a performance to make the cg work sakota mounted that pt6 way out there on the nose and that's an issue here any airplane was going to drop the nose in an aileron roll i flew the f-15e and then had a roll rate in excess of 500 degrees a second and then those would still drop at least five degrees the t-38 had an incredible roll rate and in fact was limited to half stick for a long rolls because you can get into a roll couple pio that could at least lead to loss of control and in-flight breakup even the extra 300 high-performance aerobatic airplane will drop the nose in that airplane you use the rudder and pitch to keep the nose set happens fast you got to practice that on one of my videos a viewer noted these are quotes my first solo in t34 perdido bay i tried to a nader on roll which was not an authorized maneuver and i wounded up wound up pointing straight down looking at the wa at a water skiing family and scared the crap out of me end quote watched aerobatic maneuver could easily have resulted in tbm's nose falling 50 or 60 degrees or more the t-34c is a turboprop mounted on a long nose just like the tbm with the high power setting the airplane would accelerate like the proverbial bat out of hell and the pilot would have been profoundly disoriented and the nose yeah regardless of whether the pilot did an intentional aileron roll or some other factor resulted in the extreme nose low altitude seconds counted an upset like this there is no room for indecision this was a nose low unusual altitude upset and quick correct action was required to survive it period time is not on there on his side you got to ask yourself are you ready for a situation like the one faced by this pilot my nickel on the grass here is to get upset prevention and recovery training as soon as possible be prepared and use your superior knowledge to avoid situations where you have to use your superior skill that's my nickel well i hope you liked the video if you do hit like and subscribe it looks like and subscribe it looks like this here i'd like to thank my patreon supporters also here without you guys making these videos would be harder to do if you'd like to support the channel i'll leave a link below to the flyworm patreon page and i appreciate that thanks for watching and i'll see you next time on flywire

Channel: FlyWire- scott perdue

Views: 68,080

Keywords: A36 Bonanza, ATP, Accident Review, Acrobatics, Aerobatic Bonanza, Aerobatics, Aviation, F33 Bonanza, F33C, Flying, Flywire, LOC, TBM 700DT, TBM accident, V35 Bonanza, airline pilot, airplane audio, atc, beechcraft bonanza, bonanza, cfi, cockpit, commercial pilot, flight training, flying an airplane, flying vlog, flywire online, flywire youtube, general aviation, loss of control Inflight, pilot, pilot life, pilot vlog, private pilot, scott perdue, tbm crash, travel, travel by plane

Id: -O3MtbhJQM8

Length: 13min 9sec (789 seconds)

Published: Fri Sep 24 2021