"whose operation" is a correct and usable phrase in written English.
It is used to indicate possession or belonging to something or someone. Example: The new computer, whose operation is incredibly smooth, is selling out fast.
Premji's reputation remained that of a highly ethical entrepreneur whose operation served as a model for other Indian firms.
William D. Powers, the state Republican chairman, whose operation essentially portrayed Mrs. Clinton as a handmaiden to terrorism?
Mr. McCain, whose operation seems less disciplined, has tried mightily to convince the press that his campaign is not sputtering.
They set up the state anti-corruption agency, whose operation to expose the dealings of a coalition partner has led to demands for a parliamentary investigation.
Three elements are defining: it is technology that takes time to master, whose usage is highly occupying, and whose operation includes some real risk of failure.
Mr. Dillard, whose operation at its peak was one of the country's five biggest catfish companies, came to the delta 50 years ago to farm cotton.
A cancer patient whose operation was cancelled four times because of a shortage of intensive care beds has died, it emerged yesterday.
How dare we even suggest that a widow whose operation has just been cancelled stop complaining and recognise global health trends?
The trust did not monitor the risks being run by patients whose operation was cancelled or who had been waiting longer than they should have been.
Valuable traders whose operation made hundreds of millions of dollars for their firms demanded a significant piece of those profits for themselves — or they took their services elsewhere.
Fred W. Phelps, whose operation is at the center of the case before the highest court now, arrived here a half-century ago to work as a preacher for a local Baptist church.
