The Ghost of Flight 401 (1978)

An aircraft crashes in the Florida Everglades, killing 103 passengers. After the wreckage is removed, salvageable parts from the plane are used to repair other aircraft. Soon passengers and crew on those aircraft report seeing what they believe to be the ghost of the wrecked airplane's flight engineer. IMDB

A very creepy ghost story
This movie was based on the true story of an airline pilot who was killed in a crash due to faulty parts in the plane. His ghost was reportedly seen by flight attendants and passengers on other flights after his death. It's a very creepy film, much in the style of "The Entity" and "Amityville Horror". If you like true ghost stories, you should like this made for television movie.

IMDB Reviewer