UAL 811 The above aircraft was an: (1) aged (2) high flight time (3) early model Boeing 747 (4) which took off in darkness (5) running late (6) and during climb (7) experienced a sudden initial event near the leading edge of wing in fuselage which left a (8) short (9) sudden (10) loud (11) sound on the cockpit voice recorder, an (12) abrupt (13) power cut to the flight data recorder, (14) foreign object damage to starboard engine #3, (15) more severe inflight damage on starboard side, (16) nine never recovered bodies, (17) port fuselage side forward of the wing relatively undamaged, (18) shattered, torn, and frayed skin in forward cargo door area on starboard side, (19) unusual paint smears in forward cargo door area, (20) rupture appearance of skin at aft midspan latch of the forward cargo door, (21) outward peeled skin on upper forward fuselage, (22) vertical fuselage tear lines forward of the wing and aft of forward cargo door, (23) had hinge stay attached to detached top piece of forward cargo door, (24) and destruction initially thought to be have been caused by a bomb but (25) later conclusively ruled out.
TWA 800 
The above aircraft was an: (1) aged (2) high flight time (3) early model Boeing 747 (4) which took off in darkness (5) running late (6) and during climb (7) experienced a sudden initial event near the leading edge of wing in fuselage which left a (8) short (9) sudden (10) loud (11) sound on the cockpit voice recorder, an (12) abrupt (13) power cut to the flight data recorder, (14) foreign object damage to starboard engine #3, (15) more severe inflight damage on starboard side, (16) nine never recovered bodies, (17) port fuselage side forward of the wing relatively undamaged, (18) shattered, torn, and frayed skin in forward cargo door area on starboard side, (19) unusual paint smears in forward cargo door area, (20) rupture appearance of skin at aft midspan latch of the forward cargo door, (21) outward peeled skin on upper forward fuselage, (22) vertical fuselage tear lines forward of the wing and aft of forward cargo door, (23) had hinge stay attached to detached top piece of forward cargo door, (24) and destruction initially thought to be have been caused by a bomb but (25) later conclusively ruled out.
The National Transportation Safety Board has explained the probable cause of UAL 811 and is working on explaining the probable cause of TWA 800. The probable cause of UAL 811 was the inadvertent opening of the forward cargo door inflight as described in NTSB AAR 92/02 from which all of the above twenty five significant observations were drawn. The probable cause of TWA 800 is being investigated and the twenty five significant observations were drawn from FBI and NTSB released statements and photographs of wreckage reconstruction.