He searched along the plane's projected flight path and the airspace to the southwest where it had started to turn.
( He ( ( ( searched along ) ( ( ( ( the ( plane 's ) ) ( projected ( flight path ) ) ) and ) ( ( the airspace ) ( to ( ( the southwest ) ( where ( it ( had ( started ( to turn ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD searched) (PRT (RP along)) (NP (NP (NP (DT the) (NN plane) (POS 's)) (VBN projected) (NN flight) (NN path)) (CC and) (NP (NP (DT the) (NN airspace)) (PP (TO to) (NP (NP (DT the) (NN southwest)) (SBAR (WHADVP (WRB where)) (S (NP (PRP it)) (VP (VBD had) (VP (VBN started) (S (VP (TO to) (VP (VB turn))))))))))))) (. .)))
He looked along the projected flight plan and saw it had veered far offcourse.
( He ( ( ( ( looked ( along ( the ( projected ( flight plan ) ) ) ) ) and ) ( saw ( it ( had ( veered ( far offcourse ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VP (VBD looked) (PP (IN along) (NP (DT the) (VBN projected) (NN flight) (NN plan)))) (CC and) (VP (VBD saw) (SBAR (S (NP (PRP it)) (VP (VBD had) (VP (VBN veered) (S (ADJP (RB far) (JJ offcourse))))))))) (. .)))