The longest-serving aviation company in rural Papua New Guinea, the Missionary Aviation Fellowship, has cut back its services owing to a lack of pilots.
General manager Mike Jelliffe said MAF was not able to meet all flight requests.
Other pilots have since resigned.
He said recruiting was not a straight forward case as those selected had to go through a one year Bible training program before starting on the job.
The Mt Hagen-based airline has been operating in rural PNG for more than 55 years.