roscoe You do know that aircraft parts have serial numbers, aren't you? It was the serial number of the axle of the truck used in Oklahoma that convicted Timothy McVeigh in a court of law, you know? Also, meticulous, detailed records are kept for all but the most trivial parts that go on those aircraft(hoses, clamps, screws and most(but not all)bolts, DO NOT have individual serial numbers which are kept in the documentation). The parts of the aircraft found in the rubble all matched that particular plane. Are you really that ignorant? This is the easy stuff. You don't even know the simplest things about the events or the evidence, yet you know better than those who actually do know about what happened that day? And that seems logical and reasonable to you? You are a complete amateur at this, the goal is not to be so stupid and obnoxious that you get banned from yet another forum you have trolled. And if you hope to ever make any headway you need to read the relevant sections of the NIST report so you at least know what the evidence is. NIST NCSTAR 1-5: Reconstruction of the Fires in the World Trade Center Towers NIST NCSTAR 1-5A: Visual Evidence, Damage Estimates, and Timeline Analysis (Chapters 1-8) NIST NCSTAR 1-5A: Chapters 9-appendix C NIST NCSTAR 1-5A: appendixes D-G NIST NCSTAR 1-5A: appendixes H-M NIST NCSTAR 1-5B: Experiments and Modeling of Structural Steel Elements Exposed to Fire NIST NCSTAR 1-5C: Fire Tests of Single Office Workstations NIST NCSTAR 1-5D: Reaction of Ceiling Tile Systems to Shocks NIST NCSTAR 1-5E: Experiments and Modeling of Multiple Workstations Burning in a Compartment NIST NCSTAR 1-5F: Computer Simulation of the Fires in the World Trade Center Towers NIST NCSTAR 1-5G: Fire Structure Interface and Thermal Response of the World Trade Center Towers NIST NCSTAR 1-6: Structural Fire Response and Probable Collapse Sequence of the World Trade Center Towers NIST NCSTAR 1-6A: Passive Fire Protection NIST NCSTAR 1-6B: Fire Resistance Tests of the Floor Truss Systems NIST NCSTAR 1-6C: Component, Connection, and Subsystem Structural Analysis NIST NCSTAR 1-6D: Global Structural Analysis of the Response of the World Trade Center Towers to Impact Damage and Fire NIST NCSTAR 1A: Final Report on the Collapse of World Trade Center Building 7 * NIST NCSTAR 1-9: Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7, Volume 1 and 2 * NIST NCSTAR 1-9A: Global Structural Analysis of the Response of World Trade Center Building 7 to Fires and Debris Impact Damage * They can all be read in PDF format here... http://www.nist.gov/el/disasterstudies/wtc/wtc_finalreports.cfm GrumpyPlease Register or Log in to view the hidden image!