Forum lotnictwa

Markos

czy komuś przychodzi na myśl jaki cel ma pilot w wyłączaniu TCAS i transpondera?

slepowron

slepowron

Tu jest bardzo ciekawy dokument brazylijski pokazujacy rysunki w jaki sposob oba samoloty mogly sie zetknac ze soba z tragicznymi konsekwencjami dla tego 737 a z niewielka szkoda dla Embraera:

[link widoczny dla zalogowanych]

slepowron

Znaleziono w koncu CVR (Cockpit Voice Recorder) nalezacy do tego Boeinga 737 - byl 20 cm pod ziemia. Odeslano go do badania do Kanady.

slepowron

Zaczynaja sie lekko dobierac do skory kontrolerom w Brazylii ktorzy moga w koncu okazac sie odpowiedzialni za ten wypadek. Tymczasem tych 10 kontrolerow ktorzy mogli miec wplyw na wydarzenia tego dnia na razie nic nie mowia bo przechodza "kuracje psychiatryczna".

Stoarn

Z ciekawostek: to już drugi lot z numerem "1907", który zakończył się kolizją. Poprzednia miała miejsce nad New Delhi ponad 10 lat temu...

slepowron

Ponizej pierwszy spis wydarzen minuta po minucie, jakkolwiek to ciagle nie odpowiada na wiele klopotliwych pytan:

Timeline:
15:51h - Last bilateral contact between N600XL and Brasília Center (on 125.05 MHz).
15:55h - N600XL crosses the VOR over Brasília and enters airway UZ6 at FL370. [Original flight plan called for FL360 after this point until TERES fix and FL380 from TERES to MAO to comply with standard RVSM. This doesn't mean anything without knowing the clearances N600XL received. Center never instructed them to descend to FL360 after crossing the VOR].
16:02h - Brasília Center loses Mode S (transponder/altitude) info from N600XL.
From 15:51h to 16:26h - no attempt from either Center or N600XL to talk to each other. [So, the Center loses Mode S info 7 min after N600XL crosses its vertical, but doesn't say anything for 22 minutes!!! According to previous info, this could be due to a shift change at Center, but the report doesn't mention anything in regard to this].
From 16:26h to 16:34h - 7 unsuccessful attempts from Center to reach N600XL.
16:38:00h - N600XL too far away and Brasíllia Center loses primary radar contact.
From 16:48:16h to 16:52:59 - 12 unsuccessful attempts by N600XL to reach Brasília Center.
16:53:39h - Last attempt from Brasília Center to communicate with N600XL, telling them blindly to switch frequencies to Manaus Center on 123.32Mhz or 126.45Mhz. N600XL receives the transmission but cannot copy the frequencies.
16:53:57h - N600XL transmits to Brasília Center that they couldn't copy the frequencies. Transmission never reaches Center.
From 16:54:16h to 16:56:53h - 7 unsuccessful attempts from N600XL to reach Brasília Center.
16:56:54h - Midair.
From 16:57:47h to 17:04:03h - 9 attempts from N600XL to reach Brasília Center.
16:59:50h - Manaus Center starts receiving Mode S info and normal squawk code from N600XL.
17:00:30h - Manaus Center unsuccessfully attempts to communicate with N600XL.
17:01:22h - N600XL unsuccessfully tries to establish contact with Manaus Center through Polar 71 to request vectors for emergency landing at Cachimbo AFB.
17:02:10h - Manaus Center receives 7700 squawk code from N600XL.
17:03:11h - Still without radio contact with Brasília Center, N600XL declares emergency and starts emergency landing procedures.
From 17:10:41h to 17:12:44h - 4 unsuccessful attempts from Manaus Center to reach N600XL.
17:13:16h - Polar 71 establishes radio contact with Manaus Center and declares N600XL emergency.

Atco

To nie transkrypt tylko robota amerykanskich prawników.

slepowron

Gabec

Atco

Sugerujesz, że to w nawiasach kwadratowych to są myśli kontrolerów prowadzących korespondencję?

slepowron

Wyjasnienie: Dopiski w kwadratowych nawiasach sa autorstwem tego ktory to przetlumaczyl z portugalskiego. Sa to jego osobiste komentarze. Nie wiedzialem ze taka oczywista rzecz musze tlumaczyc.