New World Air Charter operated three DC6's in the Persian Gulf area, mainly in Oman although I believe were based in Sharjah and/or Dubai in the UAE. They were N19CA, N122A (the one that crashed into Jabal Akhdar, Oman) and N91308.
Much of their work came from flying construction materials into Oman while the then Sultan of Oman's Airport base at Thumrait was being built. As the construction boom subsided NWAC picked up business in other area. At the time of N122A's crash it was positioning back to Larnaca, Cyprus after delivering a load of fresh fruit and vegetables, operating under a Cyprus Airways callsign.
The crew included Captain Dudding and First Officer Gassim Sleight (literal spelling of his Arabic name). Sadly they along with the Flight Engineer and possibly a loadmaster, all perished.