Air and H2 in the generator during a purge procedure blew up. There is never, ever supposed to be a mixture of H2 and air during the purge procedure. H2 is purged with CO2 to 95%+ CO2, then the CO2 is purged with air. When regassing the generator the air is purged with CO2 to 95%+ CO2, then the CO2 is “purged” with H2.
***Air and H2 in the generator during a purge procedure blew up.***
Good grief! Don’t they have a checklist to go by for this procedure? Did the sealing oil also catch on fire?
There is no excuse for purging H2 with air!
Wow, that’s a really basic operations screw-up.