"Firefight" Authors & Contributors: A Plane Hit the Pentagon!

[Firefight: Inside the Battle to Save the Pentagon] - C-SPAN Video Library
http://www.c-spanvideo.org/program/205883-1

Here/now: Interview with Pat Creed Pt. 3 - 6:16:

My co-author especially, being a professional journalist, he kept hammering me, again and again and again, "You need to be proud of this, no errors, confirm everything. Every single person who says 'this happened' get two other sources to say 'yeah that happened'". We really worked hard to make sure that not only was it a good story but it was a very accurate story and I feel very comfortable and confident that what we wrote is a good reflection of what happened.

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Page 373:

For the first time, Regan's team saw something they had expected to see all along but had been scarce until then: recognizable airplane parts. They all thought they would find big pieces of the airliner laying everywhere, the way car parts end up strewn across a highway after a crash. But the physics of an airplane crash were obviously different: Mostly there was just tons of shredded metal and melted plastic.

Finally, they found several airplane seats, piled among the usual mounds of upturned office furniture and random wreckage. A couple of the seats still had bodies belted into them, which had already been found and marked for the FBI. Most of the workers inside were conscientious about not gawking, yet the seats attracted a lot of attention. They were the first objects the nonaviation experts had seen that unmistakably belonged to an airplane.

Page 425-426:

The airplane had nearly disintegrated, but Dan Fitch's group found several huge cogs, bent and blackened, that weighed a couple hundred pounds each; it took a couple of workers to handle each one. Other objects nearby looked like large gears, and strips of metal that appeared to be fan blades. Workers realized that they were pulling apart the remnants of one of the aircraft's two engines. The aluminum cowling that had encased it all had been torn away, but the guts of the engine were there.

FEMA crews used a blowtorch to free the core of the motor from the column in which it was embedded. Then Fitch and several others used pieces of six-by-six to pry the motor loose from the column and push it off the pile. With the help of some Old Guard troops, they rolled the heavy piece of machinery onto a dolly and finally managed to push it outside. The whole effort took the better part of an entire shift.