21.   In the South, the only comparable incident involved an expulsion decree in Thomasville, Ga., but it was never enforced, Greenberg says.

22.   Investigators, frustrated that they have no direct evidence that the incident involving the rudder occurred, say that for now they must assume it was a malfunction.

23.   Iris Kirk believes the incident involved her son.

24.   Maj. Gen. Francis C. Gideon Jr., commander of the Air Force Safety Center, acknowledged that all three incidents involved engine failures.

25.   Many incidents involved the unofficial sharing of food with starving and underfed families.

26.   Most incidents involve commercial airliners, which are required by federal regulations to keep several miles between one another horizontally and thousands of feet of buffer space vertically.

27.   Mrs. Ricci, who is studying communications at Westchester Community College, said the incident involved a misunderstanding for which the officer later apologized.

28.   Most incidents involve intoxicated passengers who become verbally or physically abusive to crew members, said United spokesman Joe Hopkins.

29.   Nomura said the unauthorized trading incident only involved two employees, both managing directors.

30.   Not all incidents involved bloodshed, but still revealed a dark side of East Texas culture.