Husky Energy Inc. cumulative redeemable preferred T.HSE.PR.B

So HSE made the same mistake as XON

[autofocus111]

This is not rocket science. Even then, design mistakes are made. Anyone remember those solid booster rockets?

>>>HOUSTON (Reuters) - An “ineffective” safeguard failed to prevent an explosive mixing of air and fuel at a Husky Energy refinery in Superior, Wisconsin, leading to a blast and fire in the plant’s gasoline-producing unit in April, a U.S. industrial safety group said on Wednesday. Air seeped through a hole in a valve within a fluidic catalytic cracking unit (FCCU), the U.S. Chemical Safety Board (CSB) said, causing an April 26 explosion that led to a massive fire and a 24-hour-long evacuation of residents living within miles of the plant. Husky, according to the CSB, had only considered a failure of the valve when locked open, not a failure when it was closed, according to an updated report the board presented of its months-long investigation at a meeting Wednesday in Superior. The failures leading to the Superior refinery explosion were similar to those that caused a 2015 explosion in an FCCU at a Torrance, California, refinery then owned by Exxon Mobil Corp. Exxon sold the refinery to PBF Energy in 2016.

https://www.reuters.com/article/us-refinery-blast-probe-husky/u-s-probe-cites-ineffective-safeguard-in-husky-oil-refinery-blast-idUSKBN1OB23P

[mrbb]

rocket booster failed due to improper use of O ring as warned by NASA engineers a design flaw. A leaky closed valve is not a design flaw. A valve is not a high tech or custom designed device. My question is - is that failed valve made in china? Even US military aircraft, ships, etc have been infiltrated with Chinese made components

[Olympic]

What impact does this finding have on HSE's insurance coverage, if any?  The CSB seems to suggest a review of industry standards may be appropriate ... e.g. not specific to HSE.

[autofocus111]

@Olympic Yes it sounds like an industry-wide problem. Not sure if company engineers are failing to properly spec out component requirements due to knowledge gaps, or if it's a supplier quality issue as mrbb suggests.

[autofocus111]

@mrbb Valve designs are generally not that complex, but selection of the appropriate valve construction materials for a specific application is crucial for proper operation and long-term reliability. In this case, it appears that the valve construction materials chosen were simply not suitable for the intended application (or that the material quality was inferior). The Challenger booster design

[autofocus111]

RE: space shutle disaster That poor engineer took the blame and suffered in guilt all the way to his grave. I wonder how the managers who ignored his warnings feel about it. >>>Bob Ebeling spent a third of his life consumed with guilt about the explosion of the space shuttle Challenger. But at the end of his life, his family says, he was finally able to find peace.  Ebeling