Related by context. Frequent words. (Click for all words.) 57 pressurization 45 malfunction 43 QF# [002] 42 thruster 42 orbiter 42 decompression 42 mechanical malfunction 42 Safety Bureau ATSB 41 Gerstenmaier 41 flashover 41 landing gear 40 malfunctioned 40 Elektron 40 ventilation 40 heat shield 39 intake valve 39 tank foam insulation 39 Air Accidents Investigation 39 condensation 38 insulation foam 38 Qantas Airbus A# 37 shuttle 37 spacecraft 37 Mission Control 37 hydraulics 37 annular 37 insulating foam 37 oxygen 37 oxygen masks 37 reactor containment 36 micrometeorites 36 shuttle Endeavour 36 foam insulation 36 hydraulic 36 spacewalk 36 thrusters 36 entrainment 36 pitot tubes 35 Readdy 35 delamination 35 cavitation 35 decompression sickness 35 rupture 35 cryogenic engine 35 ducting 35 orbital debris 35 submersion 35 Flight controllers 35 fatigue cracks 35 orbiting shuttle 35 Soyuz capsule 34 faulty valve 34 impactor 34 hydraulic leak 34 breakage 34 detonation 34 seepage 34 breathable air 34 valve 34 thrust reversers 34 undocking 34 liquid hydrogen 34 alarm sounded 34 suction 34 liftoff 34 leak 34 Dittemore 34 oxygen cylinder 34 Rick Mastracchio 34 malfunctioning 34 spokesman Allard Beutel 34 backflow 34 compressor 34 recirculation 34 Mike Suffredini 34 foam 34 aerodynamic stall 34 stick shaker 33 oxygen canisters 33 atmospheric gases 33 embolism 33 airspeed 33 spokesman Lynn Lunsford 33 wing flaps 33 AAIB 33 vapor 33 carbon monoxide 33 flange 33 space shuttle Discovery 33 leakage 33 horizontal stabilizer 33 malfunctions 33 spacesuits 33 mayday call 33 oxygen cylinders 33 Air Accident Investigation 33 thermal shielding 32 cargo compartment 32 Orbiter 32 ignition 32 CRJ