It was confirmed that the flight recorder (FDR) and voice recorder (CVR), which are the black boxes of the Jeju Air accident plane, did not store data for about 4 minutes immediately before the accident.
On the 30th, at the scene of the Jeju Air passenger plane crash and explosion accident at Muan International Airport in Muan-gun, Jeollanam-do, the police forensic investigation team is examining the azimuth facility (localizer) near the runway. Muan = Yonhap News
On the 11th, the Aviation and Railroad Accident Investigation Committee announced, “Recording of both FDR and CVR was stopped during the last four minutes before the aircraft collided with the localizer (azimuth facility).”
On the morning of December 29, when the accident occurred, data from 8:59, when the pilot sent a mayday (distress signal) due to a bird strike, to the time of the collision at 9:03 is missing. Currently, the Sajo Committee is investigating the cause of the recording interruption.
The aircraft black box consists of a flight recorder (FDR) and a voice recorder (CVR). FDR records the aircraft’s flight path and the operating status of major equipment, and through this, various information such as altitude, speed, and whether the landing gear is operating can be checked.
The CVR stores communications between pilots and controllers, conversations within the cockpit, and warning and operating sounds within the aircraft. The black box of the accidental Boeing 737-800 aircraft can store up to 25 hours of FDR data and up to 2 hours of CVR data.
The Sajo Committee extracted CVR data related to this accident from the Gimpo Airport Test and Analysis Center, converted it to an audio file on the 2nd, and completed the recording process on the 4th. Due to damage to the connection line, FDR was transferred to the U.S. National Transportation Safety Board (NTSB), where data was extracted and analyzed from the 7th to the 11th in the presence of two investigators.
A committee official said, “We plan to provide information to the victims and their families to the extent that can be disclosed through on-site investigations and procedures such as public hearings,” and added, “We will do our best to conduct a fair and transparent accident investigation.”
Reporter Kim Kyung-ho stillcut@segye.com
(ⓒ Segye Ilbo & Segye.com, unauthorized reproduction and redistribution prohibited)
Source: www.segye.com
