51.   The wiring problem emerged in April, when mechanics at Continental Airlines were called out to repair a fuel leak in a wing tank.

52.   Typically, the agency suspends experiments when safety problems emerge.

53.   When a market problem emerges, one attorney general usually becomes the lead negotiator, who then contacts the company.

54.   When problems emerge, judging the wisdom of management can be tricky, especially when some of your key sources are within the company.

55.   While he impressed his partners, problems emerged when Shipman experienced blackouts.

56.   Besides the complex, open fracture, Maier suffered lacerations and damaged muscle tissue, and kidney problems emerged during the surgery, the Austria Press Agency reported.

57.   Buckley also said Callan had misled Drake into believing he would be able to return the painting if a problem emerged.

58.   But some problems were emerging.

59.   But problems have already emerged.

60.   But that involvement evaporated as soon as problems emerged, Ms. Cheng said.