Related by context. Frequent words. (Click for all words.) 56 leak 55 ruptured pipe 54 ruptured 54 valve 54 leaky valve 53 propane leak 52 corrosion 52 gallon propane tank 51 leaky pipe 51 faulty valve 51 rupture 51 engine compartment 51 gasket 50 ruptures 50 hairline cracks 49 sealant 49 Beaudo 49 blown fuse 49 leaks 49 pipe 49 sprung leak 49 vacuum hose 49 oily residue 48 fuel injector 48 alkylation unit 48 propane tank 48 valves 48 propeller shaft 48 compressor 48 corroded 47 hydraulic fluid 47 sprang leak 47 depressurized 47 Line 6A 47 Discoverer Enterprise 47 pipework 47 oily substance 47 coker unit 47 Line 6B 47 piping 47 eye irritation 47 unplanned shutdown 46 seepage 46 manhole 46 pipeline rupture 46 acetylene torch 46 hydrogen sulfide 46 isomerization unit 46 radiator 46 flange 46 heat exchanger 46 sump 46 welding torch 45 discolorations 45 hose 45 manhole cover 45 valve stems 45 metal shavings 45 mechanical malfunction 45 gasoline vapors 45 pericardium 45 Coolant 45 wiring harness 45 malfunction 45 discoloration 45 duct 45 brake fluid 45 backhoe operator 44 flammable substance 44 propane tank exploded 44 watermain 44 electrical malfunction 44 hissing sound 44 tank foam insulation 44 propane torch 44 cowling 44 carburetor 44 water heater 44 ammonia leak 44 ammonia 44 hydrotreater 44 leaking 44 sinus cavity 44 potassium hydroxide 44 Upon arrival firefighters 44 transformer 44 nozzle 44 repaired 44 perforation 44 gaseous hydrogen 43 absorbent pads 43 propane heater 43 liquid propane 43 Condensation 43 Hydrochloric acid 43 air conditioning duct 43 bowel obstruction 43 muriatic acid 43 bilge pump 43 discolored 43 exhaust manifold