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 Oggetto del messaggio: Crash: Sriwijaya B735 at Jakarta on Jan 9th 2021
 Messaggio Inviato: 09/01/2021, 13:38 
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Viene riportata la notizia di un disastro aereo in Indonesia. Una prima sommaria descrizione dell'accaduto può essere letta su AVHerald:

Cita:
A Sriwijaya Boeing 737-500, registration PK-CLC performing flight SJ-182 from Jakarta to Pontianak (Indonesia) with 56 passengers and 6 crew, was climbing out of Jakarta about 11nm north of Jakarta's Sokarno International Airport over the Java Sea when radar and radio contact was lost with the aircraft at 14:40L (07:40Z). The aircraft has so far not turned up anywhere else. A search is underway. Debris and body parts were located in waters of about 15 meters depth near Lancang Island.

Sokarno Airport confirmed radar and radio contact with the aircraft was lost. Data review is underway, further communication to be expected from the Ministry of Transport.

Indonesia's Ministry of Transport confirmed contact with the aircraft was lost. A search and rescue operation is in progress under the coordination of Basarnas.

The airline so far have not yet commented.

Residents of the islands nearby (Thousand Islands) were out on the sea in two boats when they heard two explosions, then found debris afloat at the sea. It was raining at that time. The residents returned one of the boats to their islands about 2 hours later and reported to police. The other boat is still at the scene holding position using an anchor. Thesse residents have so far recovered seats, cables, pockets and jeans.

The captain of a ship with 28 crew, that was located about 6nm from the impact site near Lancang Island, reported they were observing an object fall into the waters and set course towards the site. They found flight jackets, body parts and debris of an aircraft. The ship is currently holding position about half a mile off the observed crash site until rescue and recovery services (of Basarnas) arrive. The water is about 15 to 16 meters deep at the crash site.

According to ADS-B data the aircraft had departed Sokarno's runway 25R at 07:36Z, was climbing through 10,600 feet at 284 knots over ground at 07:39:50Z about 11nm north of Sokarno Airport and was at 07:40:11Z at 1400 feet at 307 knots over ground about 1.6nm northnortheast of that position (average sink rate 26,300 fpm).


http://avherald.com/h?article=4e18553c&opt=0

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 Oggetto del messaggio: Re: Crash: Sriwijaya B735 at Jakarta on Jan 9th 2021
 Messaggio Inviato: 10/02/2021, 16:12 
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Il KNKT indonesiano ha pubblicato il rapporto preliminare sull'incidente che ha nel malfunzionamento dell'autothrottle che ha determinato un'asimmetria di spinta un fattore, ma come ormai dovremmo sapere tutti, non l'unico. Intanto continuano le ricerche del CVR di cui si è già trovato il contenitore ma non l'unità di memoria.
Riporto uno stralcio da AVHerald:

Cita:
At 14:36:51 LT, the Flight Data Recorder (FDR) data recorded that the Autopilot (AP) system engaged at altitude of 1,980 feet.

At 14:38:42 LT, the FDR data recorded that as the aircraft climbed past 8,150 feet, the thrust lever of the left engine started reducing, while the thrust lever position of the right engine remained. The FDR data also recorded the left engine N1 was decreasing whereas the right engine N1 remained.

At 14:38:51 LT, the SJY182 pilot requested to the TE controller for a heading change to 075 degrees to avoid weather conditions and the TE controller approved the request.

At 14:39:01 LT, the TE controller instructed SJY182 pilot to stop their climb at 11,000 feet to avoid conflict with another aircraft with the same destination that was departing from Runway 25L. The instruction was read back by the SJY182 pilot.

At 14:39:47 LT, the FDR data recorded the aircraft's altitude was about 10,600 feet with a heading of 046 degrees and continuously decreasing (i.e., the aircraft was turning to the left). The thrust lever of the left engine continued decreasing. The thrust lever of the right engine remained.

At 14:39:54 LT, the TE controller instructed SJY182 to climb to an altitude of 13,000 feet, and the instruction was read back by an SJY182 pilot at 14:39:59 LT. This was the last known recorded radio transmission by the flight.

At 14:40:05 LT, the FDR data recorded the aircraft altitude was about 10,900 feet, which was the highest altitude recorded in the FDR before the aircraft started its descent. The AP system then disengaged at that point with a heading of 016 degrees, the pitch angle was about 4.5 degrees nose up, and the aircraft rolled to the left to more than 45 degrees. The thrust lever position of the left engine continued decreasing while the right engine thrust lever remained.

At 14:40:10 LT, the FDR data recorded the autothrottle (A/T) system disengaged and the pitch angle was more than 10¢X nose down. About 20 seconds later the FDR stopped recording. The last aircraft coordinate recorded was 5°57'56.21" S 106°34'24.86" E


http://avherald.com/h?article=4e18553c/0000&opt=0

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