Wisely reasoned as always, Chief.
Let me correct that. The problem keeping the ship at Hilo was specific to one generator only. The member of the "technical team" to whom you spoke was inadequately informed or speculating. Other, unrelated, routine maintenance was ongoing as usual.
The time to repair was less than 40 hours, with teams working 24 hours a day. The total time in port was longer in duration than the total time needed for repairs, as the issue was not discovered at the instant of arrival. Naturally, time was also needed to prepare for departure after the issue was corrected.
It was a successful example of routine checks identifying the problems they are meant to identify.
Your information is correct. The hull inspection period at Pearl Harbor, which had been planned long in advance, was routine. It did not involve any maintenance and was unrelated to the generator issue that had been successfuly resolved a few days earlier. The ship departed early from Pearl Harbor. The only unexpected challenge was the crew being prohibited from going ashore at Pearl Harbor, due to the security policies of the surrounding military installation.
After boarding passengers and departing from Honolulu on time, a medical issue caused the ship to return briefly to port to disembark the affected passenger. This also is a routine occurrence.
Neither the drydock period nor the return to Honolulu were related to any kind of maintenance issue, though I admire the capable imaginations of those who suggest a much more dramatic series of events.