51.   North Korea insists the sub was on a routine training mission when it developed engine trouble.

52.   Schoonenwolf said the group received no advance warning of the airstrikes before they began a routine mission to Pale last Tuesday.

53.   Schoonenwolf said they received no advance warning of the airstrikes before they began a routine mission to Pale last Tuesday.

54.   Schoonenwolf said they received no advance warning of the impending air strikes before they left Podgorica in Yugoslavia for a routine mission in Pale last Tuesday.

55.   The aircraft was on a routine mission in support of an advance U.S. force that may intervene to aid returning refugees.

56.   The aircraft was on a routine mission in support of an advance U.S. force that may intervene to aid returning Rwandan refugees.

57.   The Chinese fighter pilot died after his jet tumbled into the South China Sea following the collision with the Navy plane, which had been on a routine mission.

58.   The helicopter was on a routine training mission, they said.

59.   The jet fighter crashed as it was taking off on a routine training mission, the military said.

60.   The North claimed that the sub developed engine trouble while on a routine training mission.