Boeing 747

Fuselage Rupture at Midspan Latches of Cargo Door



Inadvertent rupture/opening at the aft midspan latch of the forward cargo door inflight on Boeing 747s has caused the fatal accidents of Air India Flight 182, Pan Am Flight 103, UAL Flight 811, and TWA 800 and possibly for the aft cargo door of China Airlines Flight 611




The distinct crash similarities of aircraft type, radar returns, wreckage plot, sudden short loud sound, abrupt power cut, fodded engines, inflight damage, missing bodies, torn off noses, and start place of damage qualify three aircraft into one class from which the deduction may be made that one unifying cause had the same effects. Another accident with the same similarities except for a torn off nose and less wreckage may also be included in that class.

The unifying cause for all four accidents is the most conclusive cause: the inadvertent opening of the forward cargo door inflight which led to the fuselage rupture.

The following Boeing 747 links are to pages which detail the hull rupture at cargo door caused destruction of three aircraft, serious damage to a fourth, minor damage to a fifth, and none to a sixth. There are also links to three DC-10 cargo door accidents, one had minor damage, one had moderate, and one had total destruction. Over a thousand passengers died and hundreds of millions of dollars were wasted. Nations assailed each other. The cause of five Boeing 747 accidents/incident was the inadvertent rupture/opening of the lower right forward cargo door in flight and the aft cargo door on the ground for the sixth. All six aircraft were similar early model Boeing 747s with outward opening cargo doors.

The forward cargo door accidentally ruptured/opened on the three destroyed Boeing 747 aircraft and the airstream tore the large door up and away taking fuselage skin with it. The huge gash in the right side of the fuselage forward of the wing was exposed to twice hurricane force winds. The enormous force on the nose crumpled the weakened nose into the large hole crease. The wind then tore the weakened nose off of the plane within three to sixteen seconds after rupture. The nose fell to the sea or ground. The rest of the plane and fuel tanks disintegrated as it fell leading to a fireball for one of them. Ample physical and observed evidence exists which documents that sequence of events. For the current crash, TWA 800, the eyewitness reported streak is the reflection of the setting sun on the piece of cargo door and attached skin as it spun away in a parabolic arc to the water.

For comparison of accident report styles a fiery night fatal crash of a military twin carrier jet, RA-5C is provided. The ultimate credential to talk about a night, fiery, fatal, jet airplane crash is to be in one.

There is no conspiracy, nor plot, nor coverup to conceal this discovery. The confirmation of rupture at cargo door area will occur when professional authorities decide to investigate it or the manufacturer decides once again to try to fix the door. The best summary evidence of rupture is given in photographs above under 'pages' and 'introduction.'

Probable sequence for TWA 800: Poly-X wiring, worn through the sheath, through the insulation to bare wire, shorts to ground on wet side of forward cargo hold and turns on forward cargo door unlatch motor which partially unlatches the midspan latches while strengthened locking sectors keep the bottom eight latches latched. Door ruptures at aft midspan latch which allow entire top of door to open which allows explosive decompression to occur tearing huge hole in side of nose. The 300 knots of slipstream tear nose off. The nose falls separate. Debris is ingested by the number three or four engine which spews fire. The rest of fuselage and wings and fuel tanks fall and disintegrate. Seconds later and thousands of feet after the door ruptures the fuel vapor and center tank erupt into fireball ignited by the on fire number three or number four engine falling with the fuel.

Personal information and comments were created by the author, John Barry Smith email barry@corazon.com Cargo door theory for TWA 800, PA 103, and AI 182 are intellectual discoveries of the author. This page first posted 5 August 1996.


© 1996 1997 1999, 2000, 2001, 2002, 2003, 2004, 2005© John Barry Smith All rights reserved for all created links and content in corazon.com pages.


The seriously damaged B 747 (UAL 811) aircraft cargo door opened in flight, tore up and away taking skin with it, but the airstream did not tear the nose off and the younger plane returned and landed safely. Big picture and More pictures.




UAL Flight 811 hole in nose when cargo door rips away exposing nine foot by 15 foot hole into which 300 knot wind crumples nose and blows in and tears nose off in older aircraft.

Background and Reference


Newer Page Reasoning behind hull rupture door opening
Introduction

Introduction Photograph
Introduction Page
reconstructmatches.html Reconstruction pictures/drawings of AI 182, PA 103, UAL 811, and TWA 800
reasoning.html Reasoning behind cargo door hypothesis
Boeing 747.html Basic Boeing 747 information.
747-121dimensions.html Drawing of Boeing 747-121
747cargo door and nose Pictures and drawings of cargo door and nose of Boeing 747
747crashes.html List of Boeing 747 crashes.
cargodoorfaraway.html Forward cargo door far, medium and close up photo.
crashchart0.html Chart of three Boeing 747 crashes and similarities presenting a pattern.
crashchart1.html Chart of three different Boeing 747 crashes/incidents and similarities.
800summary TWA Flight 800 ,UAL Flight 811, Pan Am Flight 103, Air India Flight 182 Summaries and explanations.
variousdooraccidents.html Accounts of various cargo door accidents/incidents.
forwardcargodoorpict.html Contents of links to door on site to show latch pins, openings, hinge, seal, and lock sectors.
747passdoor.html 747 plug type passenger door failed
Why Does Door Rupture/Open?
Door Goes; Nose Goes? When door ruptures, how and why nose comes off.


Inadvertent Cargo Door Openings/Ruptures in Wide Body Passenger Aircraft: Boeing 747 and DC-10


PDF Smith AAR and official AAR for Air India Flight 182, Pan Am Flight 103 , Trans World Airlines Flight 800 and United Airlines Flight 811.

These Smith AARs show in pictures and text the destruction of Boeing 747s which suffer inflight breakups.


Cargo Door Opening Event One (Confirmed), 1970
DC-10, Ground Test

DC-10page146.html Cargo door blew out on ground test. This event was before Windsor cargo door accident which was before Paris cargo door accident.
DC-10page147.html Voluntary solution offered to make cargo door failsafe.


Cargo Door Opening Event Two (Confirmed), 1972
DC-10, American Flight 96

DC-10photorippeddoor.html Picture of aft cargo door that failed on DC-10, Windsor accident.
DC-10page148.html Outward opening door justification
DC-10page151.html Explosive decompression explained.


Cargo Door Opening Event Three (Confirmed), 1974
DC-10, Turkish Airlines Flight 981

DC-10photowreckage.html Photo of DC-10 and wreckage of Flight 981, Paris accident.
DC-10cargodoorcrashp15.html Text of crash, door seen on radar as it departs, loud sound of decompression on CVR.

DC-10crashcontents.html To DC-10 contents

Cargo Door Opening/Rupture Event Four (Confirmed), 1985
Boeing 747-237B, Air India Flight 182

AI182essentials.html Extracts from Canadian report, Boeing 747-237B. Explanations of sudden sound, decompression damage, wreckage plot, and inflight damage.
182summary.html Description of Air India Flight 182 crash with cargo door similarities.
Debriefing

AirIndiareportcontents.html To Canadian and Indian Air India Flight 182 accident report

SmithReport182.pdf


Cargo Door Opening Event Five (Confirmed), 1987
Boeing 747, Pan Am Flight 125

125sum.html Pan Am Flight 125 had door open but did not lose door in flight, Boeing 747.


Cargo Door Opening/Rupture Event Six (Probable), 1988
Boeing 747-121, Pan Am Flight 103



PA103essentials.html Extracts from AAIB accident report. Descriptions of sudden loud sound, damage location, wreckage plot, and abrupt power cut.
103radarblip1.html Pan Am Flight 103 cargo door caught on radar. Fig C-14, Boeing 747. This image matches radar plot of TWA 800.
103cvrtext1.html CVR short loud sound interpretation as break up of aircraft structure. Page C-6
103scancvr1.html Abrupt loss of signal indicates severe event occurred. Fig C-8
103scandraw0.html First reconstruction drawing showing cargo door coming apart on 103. Fig. B-10
Debriefing
Pan Am 103 Not a Bomb? Flimsy evidence for bomb now even weaker with subsequent similar accidents.

103reportcontents.html To UK Pan Am Flight 103 accident report

SmithAAR103.pdf


Cargo Door Opening Event Seven (Confirmed), 1989
Boeing 747-122, United Airlines Flight 811


UAL811essentials.html Extracts from NTSB accident report. Descriptions of sudden loud sound, radar tracking, missing bodies, FOD engines, and sequence of destruction once door opens.
811bigholephotobetter.html Better picture of big hole that 300 knot wind enters and blows off nose of UAL 811, Boeing 747.
811page92conclusions3cause.html Revised probable cause of door opening, faulty switch.
811PS.html Popular Mechanics cover picture and story.
811picture UAL 811 cargo door hole picture
More pictures of UAL 811 cargo door hole
Debriefing

811reportcontentpage.html To UAL Flight 811 NTSB accident report

Cargo Door Opening Event Eight (Confirmed), 1991
Boeing 747, UAL Preflight

811page65uncommandeddoor.html Aft cargo door opened on ground when it shouldn't during UAL preflight, Boeing 747.
811page67uncommdooranly1.html Chafed, frayed wires shorted.
811page68uncommdoranly2.html Cracks in conduit


Cargo Door Opening/Rupture Event Nine, (Probable) 1996
Boeing 747-131, Trans World Airways Flight 800

Boeing 747.html Basic Boeing 747 information.
747-121dimensions.html Drawing of Boeing 747-121
747cargo door and nose Pictures and drawings of cargo door and nose of Boeing 747
747crashes.html List of Boeing 747 crashes.
cargodoorfaraway.html Forward cargo door far, medium and close up photo.
variousdooraccidents.html Accounts of various cargo door accidents/incidents

Introduction
Introduction Photograph
Introduction Page
TWA800hullrupture.html Picture of Hull Rupture in NTSB TWA 800 Photo with annotation
reasoning.html Reasoning behind cargo door hypothesis
Destruction Sequence Chafed wiring shorts on door unlatch motor.Boeing 747-131
forwardcargodoorpict.html Contents of links to door on site to show latch pins, openings, hinge, seal, and lock sectors.
Boeing 747 TWA 800 hull rupture at cargo door area and destruction sequence
Red paint smears, outward peeled skin, outward petal bulge aft midspan latch of cargo door.
Cargo door sill, latches and locks possible mixup
TWA800eyewitness.html Witness Group Factual Report NTSB Docket Number SA 516, Exhibit 4A and Forward Cargo Door Exhibit 15C

800streakexplained.html The observed streak is explained as reflected evening sunlight off fuselage as door piece spins away.
cargodoorasstreak.html Picture of streak source and experiment to confirm it.
ntsbcommentlatches.html NTSB comments on all doors of TWA 800 being latched.
Press Kit Press Kit Pictures and Text
800avweekintrigue.html The NTSB states intrigued by forward door popping open in Aviation Week.
800crashsitemap.html Actual photo of TWA Flight 800 Boeing 747, crash site maps and recovered wreckage
800wxradar.html Photos of weather radar of crash, maps and aviation chart of site.
800partsphoto 800 cargo door in pieces.
800engine3.html Photo of damaged engine 3 as it was brought up.
800publicappeal.html Public appeal for help...granted.
TWA800essentials.html Extracts from news sources concerning cargo door on TWA 800.
TWA 800 Cargo door area reconstruction showing rupture at aft midspan latch of forward cargo door inflight.
Pictures and Text of fuselage ruptures at forward cargo door of PA 103, UAL 811, TWA 800, and AI 182
Comparison between UAL 811 and TWA 800
Forward Cargo Door Pictures
Pictures and Text of fuselage ruptures at forward cargo door
reconstructmatches.html Reconstruction pictures/drawings of AI 182, PA 103, UAL 811, and TWA 800
crashchart0.html Chart of three Boeing 747 crashes and similarities presenting a pattern.
crashchart1.html Chart of three different Boeing 747 crashes/incidents and similarities.
800doorversusfire.html TWA 800 cargo door theory versus center tank fire analysis
800summary TWA Flight 800 ,UAL Flight 811, Pan Am Flight 103, Air India Flight 182 Summaries and explanations.
Why Does Door Rupture/Open?
Door Goes; Nose Goes? When door ruptures, how and why nose comes off.



Cargo Door Opening Event Ten (Confirmed)

Boeing 747 Door Openings/Leaks

747dooropeningsleakings.html Aft and forward cargo doors continue to open or leak.


Cargo Door Opening Events Eleven and Twelve (Possible) 1991 and 1992
Boeing 747-2R7 and Boeing 747-258F

ELALChina.html Two Boeing 747s that both lost engines three and four during climb and crashed. Destruction sequence closer to UAL 811 than JAL 46E.

 


Cargo Door Opening Event Thirteen (Possible 2002)
Boeing 747-209B China Airlines Flight 611

Smith Table showing matches of evidence among China Airlines Flight 611, Air India Flight 182, Pan Am Flight 103, United Airlines Flight 811, and Trans World Airlines Flight 800.


Cargo Door Opening/Rupture Event Fourteen (Inevitable) TBA

Boeing 747, Airline Flight Number TBA

TBA.html Description of event thirteen characteristics when it happens. Age related problems get worse with age, not better.




Article in Flying magazine July 1992.
J. Mac McClellan Editor

'Door bomb?

John Barry Smith, of Carmel Valley, California, wrote with a provocative
comment on the Pan Am 103 crash. Smith points out the similarities
between the damage caused by the cargo door failure of United Flight 811
over the Pacific and that of Pan Am's 103 over Scotland. Both airplanes
involved were Boeing 747s and both suffered massive structural damage to
the lower forward fuselage. The United flight made it safely to Hawaii
while Pan Am's 747 came down in pieces.

The cargo door from the United airplane was retrieved from very deep
water, and examination of the door forced the NTSB to change its
probable-cause finding for the accident. The Board had originally
concluded that improper latching of the door before takeoff caused the
failure; but the minimal damage found on the door now indicates that an
electrical malfunction probably caused electrically operated latches to
open in flight.

Smith points out how the cargo door opening at 23,000 feet on the United
flight ripped a large hole in the fuselage and sent baggage and other
debris into the number-three engine. He notes that the Pan Am flight was
at a higher altitude when it suffered massive structural failure and
that baggage and debris were also found in the number-three engine. He
believes the greater differential cabin pressure of the higher altitude
could have been enough to cause loss of the airplane if the cargo door
opened on the Pan Am flight.

It's an interesting theory. British and U.S. investigators are working
with microscopic evidence of a bomb when in fact damage caused by the
failure of the cargo door on the United flight proves door failure could
have caused the Pan Am crash. Actual bomb evidence is small and we're
told finding it was one of the most astute investigative feats ever.
Investigators also tell us that the bomb evidence is incontrovertible.
Could they be wrong? The NTSB was wrong about the United cargo door
failure until the actual door was recovered from the ocean floor. The
bomb on board the Pan Am flight may have been the cargo door latches,
not plastic explosive hidden in a portable radio. Politics drives the
investigation to search for terrorists but aviation safety demands a
totally open mind and the suspicion that the airplane could have failed
without outside interference. Smith has no evidence that a cargo door
failed on Pan Am 103-but he gives us something to think about.'


Miscellaneous


crashsimilarvariables.html The pattern of similar variables in crashes of 182, 103, 811, and 800.
TWA800PA103UA811.html Photos of gash in 811, hole in E-4B, gash in 103.
Boeing 747 Bomb/improvised explosive device/explosive decompression. Discussion about the four accidents and bomb explanations for each.


BuNo 149314 US Navy accident report with comments

ejection.html What it's like to go spinning into the night as your jet crashes in first person unofficial version.
314summary.html What it's like to spinning into the night as your jet crashes in third person official version.

314accidentreport.html To more selected pages of 149314 Navy Accident Report

Contents
barry@qp6.com