MANILA, The Philippines(AP i — Typhoon Olga weakened to a tropical storm todayafter causing at least 35 deaths in the Philippines, most of them bv drowning and electrocution in flood-stricken areas of Manila, officials said.The Red Cross said reports from the provinces were delayed because power lines weredown.Rescuers said thev found the bodies of five Philippine men in the wreckage of a twin-engine light plane which crashed in wooded hills 40 miles south ofManila on Thursdav at theMB?height of the typhoon.The plane went down in a remote area while on a flight from Levte 300 miles north to ManilalUp.on a tourist junket.Although reduced to a tropical storm. Olga continued to lash Manila with wind and rain and some streets were flooded. Weathermen warned that a new and stronger typhoon. Pamela, with 112-mile-an-hour winds, was expected to reach the Philippines in three or four days.A rescue official said theweather prevented the dispatch of planes to check on the condition of a Panamanian-registered freighter, Seng Hong, which ran aground near Mem-burao Bav in the island of Min-doro, 100 miles south of Manila, Eighteen persons were reportedon board Authorities said they still had no word about a light plane, a Philippine navy aircraft carrying seven passengers, whichdisappeared Thursday after leaving Palawan Island for Ma-