PetroStreet

A lot many learnings from the incident.
Steam service resulting in BLEVE from oxygen pitting corrosion impacting a repair location not complying with standard repair & inspection requirements.
Thought, would interest many.
We planned a separate session with our Inspection & Maintenance teams to discuss this incident. Participating engineers contributed on how such scenarios can be avoided. How the triggers can be picked up early as we identified the equipment at our location prone to oxygen pitting corrosion in steam generation.

https://www.csb.gov/assets/1/6/loy_lang ... _final.pdf

How well the cause has been pointed towards:

"The CSB determined that the cause of the explosion was deficiencies in Loy-Lange’s operations, policies, and
process safety practices that failed to prevent or mitigate chronic corrosion in its Semi-Closed Receiver and
Kickham Boiler and Engineering’s performance of an inadequate repair to the SCR in 2012 that left damaged
material in place. Contributing to the incident was the City of St. Louis’s missed opportunities to identify and
ensure the inspection of the SCR, Arise’s acceptance of and failure to detect Kickham’s inadequate repair, and
gaps in Arise’s and the National Board of Boiler and Pressure Vessel Inspectors’ repair inspection requirements."