The two navy military helicopters that crashed in Malaysia at the end of April were "airworthy". This is what emerges from the second preliminary report on the plane crash published by the Investigation Board of the Asian country. In detail, the Royal Malaysian Navy stated that standard maintenance on both aircraft had been carried out according to procedures established by the aircraft manufacturer.

"All crew members were in good health and operated the aircraft according to their qualifications". Analysis of Flight Data Recorder data for the AW-139 was received on May 3 and is being further analyses. The final report is expected to be completed by May 29, "the Malaysian navy said in a statement, adding that the investigation is being conducted with the support of the Malaysian Air Force's Directorate General Technical Airworthiness, Leonardo Helicopters and Airbus Helicopters.

Ten soldiers died in the accident on April 23rd. The accident involved two helicopters: an AW-139 (marks M503-3) and a 555-SN "Fennec" (marks M502-6), which collided while flying at low altitude in close formation, during the parade rehearsals of the 90th anniversary of the foundation of the national navy. They crashed to the ground in a stadium, around 9:30 local time, near the Lumut air base. 

On the subject, see also the article published by AVIONEWS.