October 1, 2011 - On Thursday a Casa C-212-100 Aviocar aircraft operated by Nusantara Buana Air crashed killing all 18 onboard. The flight departed Medan Polonia Airport, Indonesia at 7:28 PM and was to land at 8:03 PM in Kutacane, Indonesia.  

The Casa C-212 was carrying 14 passengers, 4 crewmembers. The last radio contact with the Casa C-212 was around 10 minutes after departure. The aircraft sent out a distress signal, then dropped off the radar. Weather conditions were reported to be fair. 

On Friday the wreckage was spotted by search helicopters in the Leuser Mountains at an altitude of 5,000 feet. Food, clothing and first aid kits were dropped with the hopes that there were survivors. Mount Leuser is the tallest mountain in the Indonesian province of Aceh, with an elevation of 11,093 feet.

Because of the rugged, forested terrain and bad weather, the first responders were not able to reach the crash site until Saturday. On Saturday emergency responders reached the crash site and found all 18 passengers and crew were found dead in their seats after a two day hick through forest and mountainous terrain. The Indonesia's Ministry of Transport confirmed the crash site to be located near Bohorok. The aircraft wings and the front and back of the plane were intact. 

Nusantara Buana Air is an Indonesian airline serving destinations in Aceh from its hubs at Medan Polonia Airport and Banda Aceh Airport. Nusantara Buana Air is listed in category 2 by Indonesian Civil Aviation Authority for airline safety quality. The airline competes with Sabang Merauke Raya Air Charter for government-charters scheduled services to towns and cities within Aceh, taking over from SMAC for 2009 after SMAC operated the routes in 2008.  

The Casa C-212-100 Aviocar aircraft registration PK-TLF was built in 1989. The CASA C-212 Aviocar is a turboprop-powered STOL medium transport aircraft designed and built in Spain for civil and military use. C-212s are also produced under license in Indonesia by Indonesian Aerospace, formerly called IPTN but now known as IAe. The design was initially marketed under the name of Aviocar, but EADS-CASA no longer uses that name in referring to the C-212. 

As of September 2011, CASA C-212s have been involved in 70 hull-loss incidents with a total of 531 fatalities. A total of 478 C-212s of all variants had been delivered through the end of 2008 by EADS-CASA. EADS-CASA currently builds only the C-212-400, which received Spanish certification in 1998. The C-212-200 is currently built in Indonesia, and IAe is also reportedly preparing to begin assembly of -400 models.