NTSC reveals this is the chronology of the fall and the last moment of Sriwijaya Air SJ 182 Page all

JAKARTA, KOMPAS.com – The National Transportation Safety Committee (NTSC) revealed the condition and last moment of the Sriwijaya Air SJ 182 plane before it crashed around the Thousand Islands, Jakarta on January 9, 2021.

This data is based on records flight data recorder or any of the black sections of the airplane black box, as well as data from air traffic controller (ATC) Soekarno Hatta Airport.

The chairman of the NTSC Flight Accident Investigation Subcommittee, Captain Nurcahyo Utomo, said the plane departed from Soekarno Hatta Airport at 2:36 p.m. WIB.

Also read: NTSC: Sriwijaya Air SJ 182 plane did not break up in midair

“FDR notes that at an altitude of 600 meters, autopilot active start or contract“, said Soerjanto, in the press conference that was transmitted Compass TV on Wednesday (10/2/2021).

Nurcahyo then explained that the problem with the Boeing 737-500 started when it reached an altitude of 8,150 feet.

“At 8,150 feet, throttle or the left engine power control lever is moved back, Nurcahyo said.

Also read: What is an automatic throttle, called Sriwijaya Air SJ182 accident anomaly?

“The engine power or engine speed also decreases, while the engine on the right side remains,” he said.

At 14:38:51 WIB, due to weather conditions, the pilot asked the air traffic control (ATC) to turn to 075 degrees.

Also read: NTSC reveals the difficulty of finding the CVR Sriwijaya Air SJ 182 black box

At that time, ATC gave permission.

ATC also predicts that the change will cause the SJ 182 plane to meet another plane, departing from the same airport at Soekarno-Hatta Airport, with the same destination, Pontianak.

“So SJ 182 was asked to stop climbing at an altitude of 11,000 feet,” Nurcahyo said.

At 14:39:47 WIB, the aircraft began to turn left as it passed at an altitude of 10,600 feet and was at 046 degrees.

“The left engine power control lever moves rearward, or throttle the left moves backwards, the right remains fixed, ”Nurcahyo said.

Also read: NTSC successfully downloaded data from FDR Sriwijaya Air SJ 182 aircraft

The ATC then gave instructions to ascend to an altitude of 13,000 feet. The pilot answered it at 14.39.59 WIB.

“This is the last communication recorded in the pilot’s communications recording at ATC Soekarno Hatta Airport,” Nurcahyo said.

FDR later recorded that the Sriwijaya Air SJ 182 aircraft reached a maximum altitude of 10,900 feet at 14:40.05 WIB.

“After this altitude the plane began to descend, autopilot inactive or disengage, the direction of the plane at that time was 016 degrees, ”Nurcahyo said.

“The posture of the plane or the nose begins to rise or jump and the plane starts to tilt or roll to the left, ”Nurcahyo said.

Also read: LIVE BROADCAST: NTSC Releases Initial Report on Cause of Downfall of Sriwjaya Air SJ 182

At the time, Nurcahyo said that throttle the left decreases, while the right remains.

The FDR recorded the last activity of the aircraft at 2:40 p.m. At that time automatic throttle begins to fall and the plane is in a bent state.

“About 20 seconds later flight data tape recorder I started to stop recording, ”Nurcahyo said.