Planes are sometimes switched because of maintenance or schedule changes.
Mr. Dorinson said the shortfall was the result of several factors, including the fact that a number of power plants were not running because of maintenance or would have violated air quality standards if they had.
Two weeks ago, consumers began to face possible blackouts because of an unusually large number of power plants in California that were not operating either because of maintenance or for fear of violating air quality standards.
No sorties were missed because of maintenance or other failures, a single F-22 was judged lost against the defeated opposing force.
"My apartment's kitchen sink made these strangely intrusive sounds during a period when the water was constantly shut off because of some mysterious maintenance," Caminiti said.
Around 95% of medical technology in developing countries is imported and over 50% of equipment is not being used, because of lack of maintenance or spare parts, because it is too sophisticated or in disrepair, or because of lack of trained personal [1].
Some pieces have been damaged because of lack of maintenance or moth-ridden storage spaces; others have disappeared entirely.
Over 50% of equipment is not being used, either because of a lack of maintenance or spare parts, because it is too sophisticated or in disrepair, or simply because the health personnel do not know how to use it".
The investigators also conclude, moreover, that if the Bangladeshi people gradually stop using the alternative water sources and processes (for example, because of the inconvenience of maintenance or complacency as disease drops off), the initial DALY-based cost of water-related infectious diseases would remain while the long-range benefits would disappear.
"I estimate that there are about 22 rigs sitting idle around the lake, but not all of them are operable, due to lack of maintenance, or because they require additional equipment," he told me.
Nine of the thirty-one studies were subsequently excluded, because there was no evidence of maintenance or change in food identities in the full text.
