KUALA LUMPUR, May 30 — The tragic crash involving two Royal Malaysian Navy (RMN) aircraft on April 23 was mainly caused by the Fennec helicopter deviating from its designated altitude and course, entering the flight path of the AW139 helicopter, according to the Board of Inquiry findings.
RMN chief Admiral Tan Sri Abdul Rahman Ayob said the Board of Inquiry also concluded that the secondary factor of the crash was the channelised attention of the AW139 helicopter crew, who were focused on changing course, thereby limiting their reaction to avoid the collision.
All 10 RMN personnel on board the two helicopters were killed in the crash at the RMN base in Lumut.
However, Rahman said the Board of Inquiry's report did not attribute the crash to human error because the Fennec helicopter was not equipped with a black box.
"There is no data to conclude human error occurred because the Fennec aircraft did not have a black box," he said at a press conference today to release the final report on the crash.
The Maritime Operations Helicopter (HOM-AW139) carrying seven personnel and the Fennec with three crew members were rehearsing for RMN's 90th Anniversary celebration.
Rahman added that the Board of Inquiry used the black box analysis report from the AW139 helicopter to aid the investigation, while for the Fennec aircraft, the flight profile was reconstructed through flight simulation using a real helicopter.
The board also obtained cooperation, expertise, and insights from the helicopter manufacturers, Leonardo Helicopter and Airbus Helicopter, to assist in the investigation.
"Airbus Helicopter confirmed that there were no devices with Non-Volatile Memory (NVM) on the Fennec aircraft that could assist the investigation," he said.
The autopsy reports confirmed that there were no issues of hypoglycemia or signs of fatigue among all the aircrew, nor were prohibited substances used.
"There were no recorded or identified elements of mental illness, and all aircrew involved were medically certified as fit to fly. The cause of death for the 10 crash victims was multiple injuries due to the aviation crash," Rahman said.
Samples of oil, lubricants and fuel from both helicopters were tested and confirmed to be normal by the Science & Technology Research Institute for Defence (Stride).
The wreckage of the two helicopters is still being stored at the RMN base in Lumut for further examination.
He said they are evaluating options to replace the two critical assets for RMN operations, either through the acquisition of new assets or leasing methods.
Commenting on the welfare of the victims' families, Rahman said RMN has disbursed all compensation payments and group insurance payouts to the eligible beneficiaries.
Pension payments have also begun to be made monthly to all the heirs concerned.
"RMN is also still receiving contributions from the public through the Lumut 24 Tragedy Fund, and distributions to the beneficiaries will be made after the fund closes in October," he said.
— Bernama
