DESERT JET DEADLINE IS EXTENDED; GUERRILLAS HIJACK BRITISH PLANE, RAISING TOTAL OF HOSTAGES TO 300
IRC com gets last-min extension of deadline set by guerrillas to destroy planes; IRC repr Rochat says no new time limit has been set; extension comes after day of conflicting repts and deteriorating situation in Amman, where clashes between commandos and Jordanian troops interrupted communications and heightened confusion over status of talks between IRC com and guerrillas; clashes reptdly prevented meeting between com and commandos forcing extension, while other repts indicate com and guerrillas had agreed to extension over telephone; position of Arabs held by Israel and freed hostages in Amman remains unclear; Swissair repts it has plane, with med supplies and nurse, ready at Zurich to fly to Amman and airlift passengers out of Jordan