San Juan Puerto Rico Humberto Vidal Explosion https://www.youtube.com/watch?v=WBnHcq2I_y4 What did the first gas technician mistakenly attributed the gas smell to be caused by?
What did the second gas technician mistakenly attributed the gas smell to be caused by?
How many days did it take for the gas to get into the basement of the building?
The NSTB investigators found the rainbow beam, this helps them determine that the explosion was likely caused by a leak of what gas?
What mistakes did the two sets of Gas Technicians make that caused them not to find the leaking Gas?
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