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AA77 FDR Data, Explained

I still find it hard to believe that there are people walking the streets unattended that AAL77 flew over the Pentagon. I mean, look at how many witnesses actually seen this aircraft, some of which seen the aircraft hit the Pentagon.
If AAL77 actually flew over the Pentagon, why is it that there are no witnesses that seen it continue on its flight path? This flight path would have taken it over two major thoroughfares, parallel to the I395 Bridge, less than one mile from the departure end of DCA runway 1, and climb out over the city of DC. Yet no one reported seeing this aircraft, or hearing it.

In actual fact, both CIT and Pilots for 9/11 Truth refuse to address the fact that no eyewitness accounts from the hundreds of people all around the Pentagon - on the freeways, on the Potomac bridges, or in the Pentagon parking lots - ever reported seeing any jet "fly over and away from the Pentagon," as both groups claim.

Not to speak of the fact that no "conspirator" could ever know in advance that anyone would miss such an event or not know that a 757 was flying over the Pentagon just as an explosion took place on the facade it just flew over.

Or that scores of people would not protest wildly that there were NO media reports of a "jet flying over and away from the Pentagon after it just bombed it!!!"

It's the Achilles Heel of the "flyover" claim.
 
In actual fact, both CIT and Pilots for 9/11 Truth refuse to address the fact that no eyewitness accounts from the hundreds of people all around the Pentagon - on the freeways, on the Potomac bridges, or in the Pentagon parking lots - ever reported seeing any jet "fly over and away from the Pentagon," as both groups claim.

One of the CIT most-used excuses is that due to the close location of Reagan National to the Pentagon, nobody would be surprised seeing an aircraft in a "fly-over" location directly over the pentagon headed east. This so absurd on so many levels it simply adds to the comical element of CIT and PfT.

I've lived and worked in the DC area for 10 years now, between Crystal City, the Washington Navy Yard and the Pentagon. I drive home on 395, every day, crossing over the 14th street bridge and have a great view of both the Pentagon and the Navy Annex as one enters Virginia. I have *never* *ever* ever seen an aircraft on a flight trajectory coming west of the Annex headed towards the Pentagon. Never. Ever. It never happens. Helos? Sure...coming from Davison AAF at Belvoir and Quantico. 757s or 767s or 727s or MD-80s? never. Anyone seeing an aircraft in that location would immediately know it was something extraordinarily different and wrong and they would know something was amiss.

Same deal with the C-130, Gopher 06. CIT/PfT clowns say the aircraft, upon departure from Andrews, was vectored to fly right along the hairy edge of P-56 which is the *prohibited area* covering the Capital and the White House. Ignorance is no defense for the CIT/PfT morons, but that is all they have because again, based on 10 years of living and driving in this exact area and the last 25 years as an active and reserve naval aviator (which included flying in and out of Andrews Air Force Base), I have never *ever* seen any aircraft ever fly such a route. P-56 restrictions are from surface to 18,000 feet. Gopher 06 was flying at 3,000 feet, a hard altitude while on the Camp Springs One departure, a published departure procedure which is apparently something new to Balsamo and his PfT Sky Kings. Aircraft at 3,000 simply do not fly along the southern edge - or any edge - of Prohibited Area 56.

And when Ranke throws the "C-130 pilot Lt Col Steve O'Brien didn't say that!", refer him to O'Brien's follow-on comments:

"To be called a liar and a part of a government conspiracy kind of affected me too, because it just scares you a little bit that there might be some kooky people out there that might want to do harm to you or your family because they feel you're part of some government conspiracy," says O'Brien.

There you have it....CIT/PfT are nothing but "kooky people". Couldn't have said it better myself.
 
CIT's excuse? all those imaginary flyover witnesses had their 911 phone calls hidden/destroyed/erased, or otherwise unavailable to even FOI requests.. I kid you not. That's how deluded and ill the CIT tree fort gang are.

As you know, I took nothing for granted in my research of the event. Because of such silliness, I actually visited the Arlington County EMS center and spoke with a number of people who actually worked the 911 calls and emergency radio response. Unless they are all part of this grand CIT conspiracy, no EMS operator/dispatch took such a call on 9/11. So much for that craziness.
 
As you know, I took nothing for granted in my research of the event. Because of such silliness, I actually visited the Arlington County EMS center and spoke with a number of people who actually worked the 911 calls and emergency radio response. Unless they are all part of this grand CIT conspiracy, no EMS operator/dispatch took such a call on 9/11. So much for that craziness.

You see, this is what a truther needs to do to live up to the positive connotation of the term "truther": Research and let the facts form the explanation. Like BCR here.

But instead, some people (*coughCITcough*) try to shoehorn the facts into the explanation... and ignore/discard them if they won't bend... :rolleyes:
 
I now have version 1.8 of my AAL77 FDR Decoder available on my web site along with new output files.

I have removed unnecessary trailing zeroes after the decimal point for some parameters.

I have also added some new parameters.

You can read further notes on the new parameters here.

Warren.
 
I now believe that the reason that the NTSB didn't decode the last 4 seconds of data from the AAL77 FDR was due to a bug in the ROSE software provided by L3 Communications, the manufacturer of the FDR. More details are on my web site here.

Warren.
 
I now believe that the reason that the NTSB didn't decode the last 4 seconds of data from the AAL77 FDR was due to a bug in the ROSE software provided by L3 Communications, the manufacturer of the FDR. More details are on my web site here.

Warren.
The L3 response makes sense, and Flight 77 was not an aircraft accident. There is no mystery, or anomalies for Flight 77, there is no need to investigate the bug for 77 as you know. The only reason to investigate the FDR is exposing liars, frauds and morons like Balsamo and his failed pilots who have no clues on 911. After 9 years of idiotic failure, they offer no theory, only implied nonsense; p4t, perfect record of 11.2Gs of pure ignorance and selling DVD with filled with implied claptrap, on sale for Christmas and the holiday season.

Are the parameters that the bug may of messed up required by the FAA et al, at the time of 77 crash? The NTSB would have most likely studied the final 4 seconds and discovered the bug if the data was of interest for the investigation; since 77 was a crime, the FBI does not need the final 4 seconds, or care if there was 4 seconds missing, since it is clear 77 impacted the Pentagon; proved ten times over with DNA, RADAR, and FDR. The only idiots in the world who made up lies about 77 are p4t and other morons obsessed by failed fantasies.

It is not unusual for the NTSB to investigate and verify FDR decoding software during fatal accidents, and correct, or develop the algorithms to decode the data. This is something the NTSB does automatically with accidents.

It gets worse; the manufacturer of the aircraft can interpret the FAA requirement and after an accident it may be clear the real position of recorded flight controls/recorded data might not be the actual value but an average or some value the manufacturer produces to meet the FAA requirement, but not a value helpful in an investigation.

The FDR decoding software bug is not a big safety issue, since it can be found after the accident and corrected. The bigger safety issue is engineering defects in flight control software which could cause structural limits to be exceeded, and faulty recording of data, making it impossible to decode the correct values.
 
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Hi beachnut,

<snip>

Are the parameters that the bug may of messed up required by the FAA et al, at the time of 77 crash?

<snip>
There is a FDR Handbook document available from the NTSB's web site. In Attachment D of that document, in the section titled "From 14 CFR 121.344–Operating Requirements: Domestic, Flag, and Supplemental Operations– Digital Flight Data Recorders For Transport Category Airplanes" and other similar sections, "Angle of attack" and "Computer failure" are listed as required parameters. These sections indicate that these parameters were required before September 11 2001. INDICATED AOA and EICAS COMPUTER were among the parameters that were messed up by the bug in the last subframe that the NTSB decoded. There is a CORRECTED AOA parameter but that was not included in the NTSB CSV file. The CORRECTED AOA parameter was not messed up by the bug.

Warren.
 
I have now discovered that the reason that the NTSB didn't decode the last 4 seconds of data from the AAL77 FDR was due to error correcting codes not being recorded on two pages towards the end of the FDR data. More details are on my web site here.

Warren.
 
...and I see that Balsamo is doing his best to discredit you on his site.

Kudos for keeping it to the facts, Warren.
 
I have now discovered that the reason that the NTSB didn't decode the last 4 seconds of data from the AAL77 FDR was due to error correcting codes not being recorded on two pages towards the end of the FDR data. More details are on my web site here.

Warren.
The main reason the NTSB did not decode the remaining data is because it was not an accident, it was a crime and the FDR would not show anything but a poor pilot took control during flight. The NTSB was not investigating Flight 77, the FBI was.

Good work; This is exactly what the NTSB would do in an accident if they thought the clues to why there was an accident were in the last 4 seconds. They would do what you did, decode the data available to them.
Since 911 was a crime, there was zero need to decode the FDR to figure out 19 terrorists took 4 planes and killed people.

I have worked in aircraft accident investigation and with Boeing engineers. If we had remaining data not decode by the stock program, we would manually decode the data if needed to solve why we had an accident. If needed we would hire someone like you, or the company tasked to decode would do so. The NTSB was not investigating this crime, they were tasked by the FBI to supply products; those products clearly show a plane working, and pilot inputs proving a poor pilot took the controls away from experienced pilots.

I am not surprised there is a problem at the end of the data; are you?

The FDR was not needed to solve 911 issues, but it did expose Balsamo and p4t for frauds on 911 issues a long time ago. Balsamo gave us 11.2g and 34g moronic math, as he failed to use the FDR for anything other than spreading lies, as he hides behind his offer no theory and evidence guarantee.

Can you take your work and use it as a thesis to finish your masters degree? PhD?
 
I have now discovered that the reason that the NTSB didn't decode the last 4 seconds of data from the AAL77 FDR was due to error correcting codes not being recorded on two pages towards the end of the FDR data. More details are on my web site here.

Warren.
Balsamo is not able to comprehend that if you were the NTSB and needed the data to solve why Flight 77 crashed; YOU have the expertise to decode the data. He has no clue what you do as a programmer and investigator.

Yes, we know Warren, all data, information and programs contain "mistakes" except for yours which you downloaded for free from Microsoft. /sarcasm
Poor guy, is dumber than a empty box of rocks.

Outstanding work Warren
 
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<snip>

Good work; This is exactly what the NTSB would do in an accident if they thought the clues to why there was an accident were in the last 4 seconds. They would do what you did, decode the data available to them.
Since 911 was a crime, there was zero need to decode the FDR to figure out 19 terrorists took 4 planes and killed people.

<snip>
That could explain why other errors in the NTSB decode were not corrected like the approximately 20' error in longitude.

Thanks for the kind words beachnut and EvilBiker.

Warren.
 
That could explain why other errors in the NTSB decode were not corrected like the approximately 20' error in longitude.

Thanks for the kind words beachnut and EvilBiker.

Warren.
Good work again on decoding the FDR.

The FF (hex) bytes that I referred to in my letter are not for parameters within the DFL.
When you post, Balsamo has no clue. Pure comedy; sorry he lurks here and is paranoid nuts as he spews nonsense and paranoid conspiracies about JREF and you. Don't tell him he sees conspiracies everywhere. When will he get his ATP, the PhD of flying?

Your reality based work has a tangential property of exposing Balsamo's ignorance on the issues. Is Balsamo's expert FDR guy a Balsamo sock, or as clueless as Balsamo? Hard to tell.

A1NM Type Certificate Data Sheet, does that have Gs in it? Balsamo is nuts on 911, the personification of ignorance and fraud.

You debunked Balsamo again, and he has no clue.
 
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Of course this will not help Warren with CPT Bob, but he did notify me a few days ago of his findings. I have not completed a full review of the file markers and codes (been at least a year since I went through the file in detail) he is referring to, but it definitely accounts for not only the NTSB decode, but also the readout attempted by P4T's Undertow years ago.

Of course the question is why those values were not recorded since at this point they seem to be pre-impact functions of the FDR. However, I suspect that is something that will remain in the realm of speculation. Beachnut is right, CPT Bob has absolutely no clue what Warren is talking about. I've done my fair share of programming and it is taking me a little effort to get my brain around it myself.

So once again, great work Warren!
 
I still find it hard to believe that there are people walking the streets unattended that AAL77 flew over the Pentagon. I mean, look at how many witnesses actually seen this aircraft, some of which seen the aircraft hit the Pentagon.
If AAL77 actually flew over the Pentagon, why is it that there are no witnesses that seen it continue on its flight path? This flight path would have taken it over two major thoroughfares, parallel to the I395 Bridge, less than one mile from the departure end of DCA runway 1, and climb out over the city of DC. Yet no one reported seeing this aircraft, or hearing it.

Of course they would have but Balsammo and CIT simply erased from existence any witness whose story could not be mangled to fit their fantasy and ignored even that of those they do acknowledge when they say it did hit the building.
 
I have not stopped over at P4T in years, but I thought I would stop in this evening to see the discussion on this particular issue. Low-and-behold, ole CPT Bob is once again bringing me into this thing finding my last comments "interesting", but asserting that I'm a "flip-flopper".

So, to clarify a point which most folks at JREF pretty much already know. I follow facts and data. In the beginning, I may be limited on both and reach tentative conclusions which I will later revise once more facts and data are available. Interesting that CPT Bob calls this "flip-flopping" since where I come from this is called the scientific method.

When I make ANY conclusion regarding ANY phenomena, my first course of action is to prove myself wrong. If I am able to do that, then I have no problem revising my conclusions. Everyone here at JREF is aware that I am not a subscriber to the "official story", but there is not really any margin for error for what happened to AAL77 on 9/11. There are anomalies in the NTSB record and FDR which I have spent years attempting to understand and have turned to some pretty darn talented and knowledgeable people in that effort. The only real mistake I made in that venture was using the "experts" at P4T early on in my work.

It is obvious from reading the thread at P4T, CPT Bob really has no clue what Warren is talking about. He keeps trying to make the issue at hand a function of the aircraft or aircraft system when it is not that at all. So let me help CPT Bob along since he does not seem to understand the issue.

The coding at issue is created by the FDR, not the flight systems. Experience has taught me that when I come across a "00" or "FF" in a raw file, to look at the context because often these are used as default values (much like 0 or 1 can be in binary). In this case, the coding is used to properly extract the original serial bit stream by the software doing the extraction. I find it particularly interesting that the anomaly occurs during the final frames and in the context of having a file myself with a modified date/time before the FDR was actually recovered certainly raises the question in my mind of tampering by the NTSB.

That is purely speculation and I don't have one iota of evidence to back it up. But if I was a conspiracy minded person, it would certainly be within reason to conclude that the 'NWO' was playing games with people like CPT Bob and P4T. Open up the file, replace the code corrections with some 'default' value for the end of flight leading to erroneous CSV outputs, read-outs and 3D animations. Distribute it to the public knowing that some 'tin foil' hat individual will pick up on the irregularities and out of sheer ignorance come up with all kinds of crazy theories about planes flying over the Pentagon, etc.

Of course mind you that is merely speculation on my part. Speculation is a wonderful thing but in the end it must be supported by something beyond just my imagination. So no CPT Bob, that is not my 'theory'. I'm man enough to say categorically that I have no idea what created the issue in this instance. All that matters to me is that Warren has identified the code error and developed a method for circumventing it so that we can use the data. Since the data he has extracted matches data from independent sources (eyewitness accounts, radar from 6 different sites and 2 independent sources, ATC records, physical damage) we can conclude that we now have a rather complete reconstruction of the final seconds of flight for AAL77.

Again, great job Warren and I for one greatly appreciate your efforts.
 

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