1.   A Pakistan International Airlines passenger jet made an emergency landing Sunday in Tehran after one of its engines caught fire, an airport official said.

2.   An American Airlines flight bound for Los Angeles made an emergency landing here Friday after its right engine lost oil pressure and filled the cabin with smoke.

3.   Irish Army bomb disposal experts Friday were called to search an Air France jet that made an emergency landing here Thursday after a telephone bomb scare, police said.

4.   A British Airways Concorde passenger jet en route from London to New York, made an emergency landing here Friday after developing engine trouble, airport officials said.

5.   A Canadian Airlines jet made an emergency landing here Saturday after a warning light indicated there was a fire in the cargo hold.

6.   A Royal Jordanian Airlines jet made an emergency landing at the airport here Friday after a bomb scare, airport officials said.

7.   A United Airlines flight to San Francisco made an emergency landing here Friday after developing engine problems shortly after take off, a government spokesman said.