 No, he is a hijack.
( No ( , ( he ( ( is ( a hijack ) ) . ) ) ) )
(ROOT (S (INTJ (UH No)) (, ,) (NP (PRP he)) (VP (VBZ is) (NP (DT a) (NN hijack))) (. .)))
Everyone on the plane is safe and there was a simple plane malfunction.
( ( ( ( ( Everyone ( on ( the plane ) ) ) ( is safe ) ) and ) ( there ( was ( a ( simple ( plane malfunction ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (NN Everyone)) (PP (IN on) (NP (DT the) (NN plane)))) (VP (VBZ is) (ADJP (JJ safe)))) (CC and) (S (NP (EX there)) (VP (VBD was) (NP (DT a) (JJ simple) (NN plane) (NN malfunction)))) (. .)))