Indonesian authorities are pressing ahead with a large-scale search effort for a chartered surveillance aircraft that disappeared from radar during a fisheries monitoring mission on Saturday, with 11 individuals reported onboard.
The aircraft, an ATR 42-500 operated by Indonesia Air Transport, departed from Yogyakarta province bound for Makassar, the capital of South Sulawesi. Air traffic controllers lost contact with the turboprop at approximately 1:30 p.m. local time as it approached the Maros highlands, just north of Makassar, officials confirmed.
According to the Ministry of Marine Affairs and Fisheries, the flight was part of an ongoing aerial monitoring program aimed at tracking and protecting national fisheries resources across multiple regions. The mission involved eight crew members and three ministry staff who were assigned to conduct aerial assessments of activity along Indonesia’s sprawling maritime zones.
Difficult Terrain and Weather Slow Efforts
Search and rescue chief Muhammad Arif Anwar said teams are concentrating their efforts on mountainous terrain near Mount Bulusaraung, an area believed to be close to the aircraft’s last recorded location. More than 400 personnel have been deployed, including specialized units from the military and national police.
“The terrain is steep and heavily forested, and visibility has been changing rapidly due to weather conditions,” Anwar said, noting that helicopters and unmanned drones are supporting the ground teams.
Basarnas official Andi Sultan added that weather disruptions have complicated aerial scanning operations, raising the possibility that the plane may have descended behind ridges that limit radar and visual detection.
Tracking Data Hints at Rapid Descent
Flight monitoring data from Flightradar24 suggested that an ATR model consistent with the missing aircraft was cruising at approximately 11,000 feet before suddenly dropping altitude and vanishing from tracking platforms. Authorities stressed that the information remains preliminary and has not yet been confirmed by investigators.
ATR, the aircraft’s French-Italian manufacturer, acknowledged that it had been informed of an incident involving one of its ATR 42-500 models in Indonesia. In a brief statement, the company said technical specialists were prepared to support ongoing inquiries led by Indonesian authorities.
Aviation Challenges in a Vast Archipelago
Indonesia’s status as a sprawling archipelago has long made air travel a critical lifeline for commerce, public services, and national monitoring missions. However, the country’s diverse topography and weather patterns also pose persistent aviation challenges. Recent years have seen a number of notable aviation accidents, including helicopter crashes in Papua and South Kalimantan last September that resulted in multiple fatalities.
As search teams continue combing both sky and land routes, families of those onboard are awaiting updates from officials in Makassar. Authorities said that no conclusions will be drawn about the cause of the disappearance until wreckage or flight recorders are located and examined.
Government agencies plan to issue further updates as ground teams advance deeper into the Maros region in the coming days.
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