Aviation safety investigations & reports

Technical assistance to NTSC - recovery of data from an AgNav unit - Fletcher FU24-950 (PK-PNC) that collided with terrain near Lampung, South Sumatra, 11 May 2013

Investigation number:
Status: Completed
Investigation completed


On 11 May 2013, the pilot of a Pacific Aerospace Fletcher FU24-950 aircraft was conducting aerial agricultural spraying activities near North Rawajitu, Lampung, Indonesia, when the aircraft collided with terrain. The pilot was fatally injured and the aircraft destroyed.

The National Transportation Safety Committee (NTSC) of Indonesia is responsible for investigating this accident. The aircraft carried an Ag-Nav GPS-based guidance and track monitoring system which the NTSC downloaded using conventional techniques. The normal download yielded data prior to the accident flight. The NTSC requested specialist assistance from the Australian Transport Safety Bureau (ATSB) to recover any accident flight data from the Ag-Nav system non-volatile memory chips that may not yet have been written to the unit's normal file system.

In accordance with clause 5.23 of Annex 13 to the Convention on International Civil Aviation (ICAO Annex 13), and to provide for the necessary protections of the Ag-Nav information, the ATSB appointed an Accredited Representative to assist the NTSC and initiated an investigation under the Australian Transport Safety Investigation Act 2003.

Download, examination and correspondence with the unit's manufacturer yielded no additional data beyond that retrieved in Jakarta. The latest available data from the Ag-Nav unit was found to be on 10 May 2013 consequently no accident flight data was available to assist the NTSC investigation team.

A report detailing the download and data examination was provided to the NTSC on 29 October 2013.

All inquiries regarding the investigation into this accident should be forwarded to the National Transportation Safety Committee of Indonesia.


National Transportation Safety Committee
Ministry Of Transportation Republic Of Indonesia
Transportation Building 3rd Floor
Jalan Medan Merdeka Timur No. 5
Jakarta Pusat 10110

Phone  :  +62 21 384 7601
Email    :  knkt@dephub.go.id

Website: http://knkt.dephub.go.id/knkt/ntsc_home/ntsc.htm




Released in accordance with section 25 of the Transport Safety Investigation Act 2003.

General details
Date: 11 May 2013   Investigation status: Completed  
Time: 0525 UTC   Investigation level: Defined - click for an explanation of investigation levels  
Location   (show map): North Rawajiti, Lampung, South Sumatra, Indonesia    
State: International   Occurrence type: Collision with terrain  
Release date: 11 November 2013   Occurrence category: Accident  
Report status: Final   Highest injury level: Fatal  

Aircraft details

Aircraft details
Aircraft manufacturer Pacific Aerospace Corporation  
Aircraft model Fletcher FU24-950  
Aircraft registration PK-PNC  
Sector Turboprop  
Damage to aircraft Destroyed  
Last update 14 November 2018