The explosion Attack blew off both the inner and outer tube doors , ignited Lighting a fire , destroyed Destroying the bulkhead between the first and second compartments , damaged Damaging the control Control room , and incapacitated Destroying or killed Killing the control Control room crew .

A doubler plate on the rear bulkhead of the plane had been improperly repaired Recovering , compromising Influence the plane 's airworthiness .

Cabin pressurization continued to expand Expansion and contract the improperly repaired bulkhead until the day of the accident , when the faulty repair finally failed Earnings_and_losses , causing Causation the rapid decompression that ripped Removing off a large portion of the tail and caused Causation the loss Earnings_and_losses of hydraulic controls Control to the entire plane .