I

ndonesian Air Force personnel on Thursday managed to recover all remaining debris from a Brazil-made Super Tucano aircraft that nose-dived into a residential area in Malang, East Java, on Wednesday.

The light-attack and trainer turboprop aircraft, made by Sao Paolobased Embraer SA, crashed into a house belonging to a local resident named Mujianto shortly after leaving Abdul Rachman Saleh Airbase in Malang for a test flight.

The incident killed four people, including the plane'€™s pilot and onboard technician.

Airbase spokesperson Maj. Sus Hamdi Londong Allo said that during Thursday'€™s evacuation process Air Force personnel had recovered the aircraft'€™s black box.

'€œIts condition is slightly damaged, but it has been secured for examination and to help us probe the cause of the plane crash,'€ he said.

The airbase'€™s head of operations Flight Col. Fairliyanto acknowledged also that the flight data recorder (FDR) of the fighter trainer, which can carry 1.5 tons of armaments, was in a damaged state.

'€œDespite that the recorded data can still be read. We will study its contents. Just wait for the results,'€ Fairliyanto told journalists without elaborating on the extent of the damage.

Earlier on Wednesday, Air Force Chief of Staff Air Marshal Agus Supriatna proposed the erection of a monument at the crash site, but on the condition that the plot of land be sold to the Air Force.

The plane crash investigation team is currently taking statements from all relevant parties to the incident that killed four including the pilot and flight mechanic.

Hamdi, however, remained unclear whether or not the investigation process would involve the aircraft producer from Brazil.

In 2010, the Defense Ministry signed a US$284 million contract with Embraer to build a squadron of 16 Super Tucanos to replace its OV-10 Bronco aircraft that had been in service for three decades.

However, a string of delays in the aircraft'€™s delivery annoyed the ministry in 2014, forcing it to lodge a protest with Brazil, telling Embraer to pay the maximum penalty of around US$7 million to compensate for the delay.

Meanwhile, the remains of the four victims of Wednesday'€™s crash have been buried. The pilot, Flight Maj. Ivy Safatillah, was buried at the Kusumanegara Heroes Cemetery in Yogyakarta.

He was buried next to the grave of Flight Capt. Cahyadi, the pilot of the T-50i Golden Eagle that crashed during aerobatics maneuvers in Yogyakarta on Dec. 20 last year.

Ivy is survived by his wife Diana Putri who is eight months pregnant and two children Dafa Firandy Zain, 9, and Aqsa Irfan Maulana, 7.

Accompanied by her children, Diana appeared strong despite tears rolling down her cheeks.

Ivy'€™s father, Faisol Rozy, claimed he was in shock and could not believe the accident had killed his son.

'€œPerhaps, it was the best way for my son. Please forgive all his mistakes,'€ he said.

Flight mechanic Sergeant Maj. Syaiful Arief Rahman was buried at the Suropati Heroes Cemetery in Malang. Civilian victim Irma Wahyuningtyas, the wife of the house'€™s owner Mujianto, was buried at the local cemetery, while Nurkholis, a tenant at Mujianto'€™s boarding house, was buried in his hometown of Blitar in East Java.