Complex sentence: The "Kweilin" left Hong Kong at 8:03am and at 8:30am, soon after entering Chinese airspace, Woods spotted 8 Japanese pontoon planes heading towards it in a menacing formation.
Split into simpler sentences: The "Kweilin" left Hong Kong at 8:03am. At 8:30am, soon after entering Chinese airspace, Woods spotted 8 Japanese pontoon planes in a menacing formation.