Hadianto further explained that the helicopter, operated by PT Hevilift Aviation Indonesia, was flying at a height of 500 feet when it was forced to make an emergency landing in a mangrove forest in Tanjung Dewa, Anggana.
- See more at:
Helicopter on survey mission prior to incident, says Total | The Jakarta Post
However, I don't say that the Jakarta Post is a credible source...but 500ft...???