Indonesian prosecutors have lodged their appeal against a court's decision to quash the conviction of the Garuda pilot whose plane crashed, killing 21 people, including five Australians.
Marwoto Komar was found guilty of criminal negligence and sentenced to two years' jail over the 2007 crash at Yogyakarta airport.
But the Yogyakarta High Court last month overturned Komar's conviction and ordered he be released from all charges.
Supreme Court appeal
Prosecutors have now appealed to Indonesia's Supreme Court in a bid to have the pilot's conviction and jail term reinstated.
Komar was flying a Boeing 737 which slammed onto the runway at Yogyakarta airport, careered into a field and exploded in flames on March 7, 2007.
Five Australians were killed in the crash: diplomat Liz O'Neill, AusAID official Allison Sudradjat, Australian Federal Police officers Brice Steele and Mark Scott, and Australian Financial Review journalist Morgan Mellish.
Investigators have argued Komar ignored a series of warnings not to land the plane as he brought it in at about twice the safe speed.
Komar has blamed the disaster on mechanical problems.
