So it's mostly swampy land; not much solid earth.
"Former NTSB member Vernon Grose said the search would probably continue to be difficult because the
water was four to five feet deep in the area where the plane crashed. He also said that larger pieces of the aircraft could be buried in the muck." (
http://www.cnn.com/US/9605/11/plane.crash/8p/)
Two witnesses fishing from a boat in the Everglades when flight 592 crashed stated that they saw a low-flying airplane in a steep right bank. According to these witnesses, as the right bank angle increased, the nose of the airplane dropped and continued downward. The airplane struck the ground in a nearly vertical attitude. The witnesses described a great explosion, vibration, and a huge cloud of water and smoke. One of them observed, “the landing gear was up, all the airplane’s parts appeared to be intact, and that aside from the engine smoke, no signs of fire were visible.”
Two other witnesses who were sightseeing in a private airplane in the area at the time of the accident provided similar accounts of the accident. These two witnesses and the witnesses in the boat, who approached the accident site, described seeing only part of an engine, paper, and other debris scattered around the impact area. One of the witnesses remarked that the airplane seemed to have disappeared upon crashing into the Everglades." (
http://www.ntsb.gov/Publictn/1997/aar9706.pdf)
And note what they found about the passenger's bodies:
A medical examiner has identified remains from eight victims of the ValuJet Flight 592 crash, according to the coroner, while a Miami television station has reported a new theory on the cause of the crash that killed them.
Officials estimated they've recovered about 20 percent of the remains of the 110 people who were on board the DC-9 that crashed May 11 in the Florida Everglades.
There were no intact bodies found, they said. The eight victims were identified through tattoos, fingerprints, jewelry and dental records. (
http://www.cnn.com/US/9605/25/valujet/index.html)
Also in the same article:
Thursday, workers gathered 200 pieces of the aircraft and transported them from the Everglades to a hangar at the Tamiami Airport, where they are assembling a three-dimensional reconstruction of the forward cargo area of the DC-9. This area is where oxygen canisters, which may have contributed to the crash, were stored.
An eyewitness on the recovery scene had these comments:
Maybe it was because of my obvious lack of deadline that the investigators made an exception in my case. They slipped me into the front seat of a Florida Game and Fish helicopter whose pilot, in a fraternal gesture, invited me to take the controls for the run out to the crash site. From the staging area we skimmed north across the swamped grasslands, loosely following the levee road, before swinging wide to circle over the impact zone -- a new pond defined by a ring of turned mud and surrounded by a larger area of grass and water and accident debris.
Searchers in white protective suits waded side by side through the muck, piling pieces of people and airplane into flat-bottomed boats. It was hot and unpleasant work performed in a contained little hell, a place that one investigator later described to me as
reeking of fuel, earth, and rotting flesh -- the special smell of an airplane accident. We descended onto the levee, about 300 yards away from the crash site, where an American flag and a few tents and trucks constituted the recovery base.
It was, of course, a somber place to be.
Human remains lay bagged in a refrigerated truck for later transport to the morgue. A decontamination crew washed down torn and twisted pieces of airplane, none longer than several feet. Investigators
tagged the most promising wreckage, to be trucked immediately to a hangar at an outlying Miami airport, where specialists could study it. Farther down the levee I came upon a soiled photograph of a young woman with a small-town face and a head of teased hair. A white-suited crew arrived on an airboat and clambered up the embankment to be washed down. Another crew set off. A
boatload of muddy wreckage arrived. The next day the families of the dead came on buses, and laid flowers and cried. Pieces of the airplane kept being hauled up for nearly another month.
Much was made of this recovery, which -- prior to the offshore retrieval of TWA's Flight 800 -- the NTSB called the most challenging in its history. It is true that the swamp made the search slow and difficult, and that
the violence of the impact meant that meticulous work was required to reconstruct the critical forward cargo hold. However, it is also true that the physical part of the investigation served to confirm what a look at a shipping ticket had already suggested -- that ValuJet Flight 592 burned and crashed not because the airplane failed but, in large part, because the airline did. (
Source So this aircraft impacted the ground in a similar fashion to Flight 93, except in this crash (remember it was into water four to five feet deep), they found "20 percent of the remains" and, at the time of the article, "200 pieces of the aircraft" enabling them to do a partial reconstruction.
Contrast how the NTSB operated and the statements made about the condition of the aircraft and the remains they found with what they said and what was witnessed at Shanksville.