When the writing is so trite you can't help but notice, especially with two cliches in one sentence up high, in a story peppered with them:
"The lack of those planes—which many airlines purchased to be their new workhorse of the skies—adds further pressure to carriers and customers at a time when the air travel system traditionally operates at full throttle."
"The lack of those planes—which many airlines purchased to be their new workhorse of the skies—adds further pressure to carriers and customers at a time when the air travel system traditionally operates at full throttle."