04.R-2016-81.03

Isi rekomendasi

The test result of the modification of the aircraft by the installation of CVR, TAWS or other system after the aircraft had been modified were not available. The absence of the modification test result made the successful installation and functionality of the systems could not be ascertained. The investigation found that the voice that should be recorded on the CAM channel was covered by engine noise. The investigation could not determine whether the TAWS was functioning during the flight. The improper installation of a system makes the function of an equipment could not be utilized. Therefore, KNKT recommends to ensure that after a modification, the system operates according to their function and supported with proper documentation.