A preliminary investigation showed four welders improperly operated their equipment, sparking Monday's blaze in Shanghai.
The state investigation also found that David Myers, a salesman from Johnson & Johnson, improperly operated the equipment during the surgery, a finding the company has disputed.
"I think the fact that M.S.H.A., the state and our fire bosses and the best engineers that you can find were all in and around this mine, and all believed it to be safe in the circumstances it was in, speaks for itself as far as any suspicion that the mine was improperly operated," Mr. Blankenship said.
The high voltage ranging from several kilovolts to tens of kilovolts may bring potential danger if improperly operated [18].
And since emissions of methane and volatile organic compounds negate the positive impact this cleaner-burning fuel can have, creating a zero tolerance standard for harmful emissions -- which often come from leaky or improperly operated equipment -- is a critical and reasonable standard to set.
It headed back after seven or eight minutes when the pilot reported that the motors that control the stabilizer were operating improperly.
The medical tests on the workers were conducted after a routine inspection of the building in October, when a radiation detector was found to be operating improperly.
4. Silent: the controller fails to acknowledge an error, for instance by signalling an exception, which causes the controller to continue operating improperly. 5. Hindering: the controller fails to return a correct error code, which may hinder error recovery.
But it has also drawn concern that the company may be too ambitious in taking one-time charges against its earnings -- like improperly masking operating losses as one-time charges that might make its operating results appear stronger than they really are.
Furthermore, the introduction of ICTD may result in poor audio quality if it is operated improperly.
