Flight MH370/2014-03-08/02-03-23 MYT: Difference between revisions

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|description=MAS ODC sends ACARS message to MH370; message fails to reach the aircraft. Retransmissions attempted until 1843:33 UTC; all fail.
|description=MAS ODC sends ACARS message to MH370; message fails to reach the aircraft. Retransmissions attempted until 1843:33 UTC; all fail.
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<p>8 March 2014 &nbsp; [[Flight MH370/2014-03-08/02-03-23 MYT|02:03:23 MYT]]</p>
<p>MAS ODC sends ACARS message to MH370; message fails to reach the aircraft. Retransmissions attempted until 1843:33 UTC; all fail.</p>


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<p>8 March 2014 &nbsp; [[Flight MH370/2014-03-08/02-03-23 MYT|02:03:23 MYT]]</p>
<p>MAS ODC sends ACARS message to MH370; message fails to reach the aircraft. Retransmissions attempted until 1843:33 UTC; all fail.</p>
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[[Category:Straits of Malacca to Andaman Sea]]

Revision as of 03:33, 26 August 2026

‎ 

‎

‎

Event Metadata

Flight ID MH370
Event Type gnd
Date and Time MYT 8 March 2014 02:03:23 MYT
Date and Time UTC 7 March 2014 18:03:23 UTC
Flight Phase Phase 4
Data Source Safety Investigation Report (2018) 1.9.4
Date and Time ISO 8601 2014-03-07T18:03:23Z
ISO 8601 Description Flight MH370 Event at 2014-03-07T18:03:23Z

Add Image Link 

‎

Event Summary

02:03:23 MYT Saturday 8 March 2014

Chronology

Malaysia Airlines ODC sent an ACARS message to MH370, direct to the cockpit printer. The ACARS message requested the crew to contact the HCM ACC immediately. The incoming downlink message at 1803:24 UTC showed the message failed to reach the aircraft. The message was retransmitted (automatically) at least seven times. On each occasion, an automated downlink message by ACARS showed ‘failed’.


Event Details

  1. Safety Investigation Report MH370/01/2018 1.9.4 Aircraft Communications Addressing and Reporting System

    The first message sent to the aircraft cockpit printer from the MAS ODC was at 1803:23 UTC. The ACARS message requested the crew to contact the HCM ACC immediately. The incoming downlink message at 1803:24 UTC showed the message failed to reach the aircraft. Messages are auto transmitted every 2 minutes and the message was retransmitted until 1843:33 UTC but all messages failed to get a response. Automated downlink message by ACARS showed ‘failed’. Message sent to the aircraft cockpit printer and the Automated Downlink messages are shown in Figures 1.9I and 1.9J (below), respectively.

    Note: Instead of the images in Figures 1.9I and 1.9J the transcript of the ACARS message is shown below.

  2. Safety Investigation Report MH370/01/2018 Appendix 1.9A ACARS Traffic Log


    Time
    18:03:23    		 Trans
    46819784    		 Direction
    Outgoing Uplink    		 AN
    9M-MRO    		 FI
    MH0370    		 Medium
    		 Machine
    MHKULKJACM001    		 Raw DTG
    071803    		 SMI
    AGM    		 Application
    RELAY
    Status
    Uplink Sent    		 Message Type
    B777 Cockpit Printer Uplink for ODC -- B777 Cockpit Printer Uplink-ODC    		 Source/Destination
    QXSXMXS

    QU QXSXMXS
    .DPCCAMH 071803
    AGM
    AN 9M-MRO/FI MH0370/MA 991I
    -
    =======================================
    I   MALAYSIA AIRLINES - ODC             I
    =======================================
    URGET REQUEST

    PLS CONTACT HO CHI MING ATC ASAP

    THEY COMPLAIN CANNOT TRACK YOU ON THEIR RADAR

    I RECEIVED CALL FROM SUBANG CENTRE

    PLS ACK THESE MSG

    REGARDS
    MARVIN



    Time
    18:03:24    		 Trans
    46819784    		 Direction
    Incoming Downlink    		 AN
    9M-MRO    		 FI
    MH0370    		 Medium
    		 Machine
    MHKULKJACM001    		 Raw DTG
    071803    		 SMI
    MAS    		 Application
    RELAY
    Status
    Normal    		 Message Type
    MAS-L (link ack)    		 Source/Destination
    QXSXMXS

    QU DPCCAMH
    .QXSXMXS 071803
    MAS
    AN 9M-MRO/FI MH0370/MA 991L



    Time
    18:06:25    		 Trans
    46819784    		 Direction
    Incoming Downlink    		 AN
    9M-MRO    		 FI
    MH0370    		 Medium
    		 Machine
    MHKULKJACM001    		 Raw DTG
    071806    		 SMI
    MAS    		 Application
    RELAY
    Status
    Normal    		 Message Type
    MAS-F (failed)    		 Source/Destination
    		 
        QXSXMXS

    QU DPCCAMH
    .QXSXMXS 071806
    MAS
    AN 9M-MRO/FI MH0370/MA 991F
    - UP INTERCEPT AIRCRAFT NOT LOGGED ON 234
    QU QXSXMXS
    .DPCCAMH 071803
    AGM
    AN 9M-MRO/FI MH0370/MA 991I
    -
    =======================================
    I   MALAYSIA AIRLINES - ODC             I
    =======================================
    URGET REQUEST

    PLS CONTACT


Notes

  1. Additional transmissions related to this ACARS message are included in the ACARS Traffic Log for MH370 (9M-MRO) released by the Ministry of Transport (Malaysia) in September 2018.
  2. This message from MAS ODC to MH370 was first sent at 18:03:23 UTC (02:03:23 MYT) and retransmitted at the following times:-
    1. 1808:09 UTC (0208:09 MYT)
    2. 1810:00 UTC (0210:00 MYT)
    3. 1811:50 UTC (0211:50 MYT)
    4. 1813:40 UTC (0213:40 MYT)
    5. 1815:23 UTC (0215:23 MYT)
    6. 1817:11 UTC (0217:11 MYT)
    7. 1818:14 UTC (0218:14 MYT)
  3. An automated response at 1819:34 UTC (0219:34 MYT) has a message Status of Trashed.
  4. The ACARS Traffic Log does not contain any further transmissions related to this message.
  5. The extract (above) stated that 'the message was retransmitted until 1843:33 UTC' but evidence of that is not available.
  6. Malaysia Airlines sent a different message at 1838:51 UTC (0238:51 MYT).


The short summary below is transcluded into a relevant Chronology page.

8 March 2014   02:03:23 MYT

MAS ODC sends ACARS message to MH370; message fails to reach the aircraft. Retransmissions attempted until 1843:33 UTC; all fail.

‎

Flight Identifier, for example MH370

Malaysian Time (MYT) is Coordinated Universal Time (UTC) + 8 hours

Coordinated Universal Time

The Safety Investigation Report MH370/01/2018 was released by the Malaysian ICAO Annex 13 Safety Investigation Team for MH370 in July 2018. More Info

Operations Despatch Centre

Aircraft Communication and Reporting System

Ho Chi Minh (Viet Nam) Area Control Centre (or Air Traffic Control Centre)

satellite communication from the aircraft to the ground earth station

Malaysia Airlines Operations Despatch Centre

Aircraft Number

Aircraft Registration Number for the Boeing 777 used for Flight MH370. More Info

Flight ID

Flight ID MH370

Unique hardware (machine) ID

Date and Time (UTC) in DD/HH/MM format

Date and Time (UTC) in DD/HH/MM format

Date and Time (UTC) in DD/HH/MM format

Standard Message Identifier

Boeing 777 aircraft

An identifier for SITA, a service provider for ACARS messages.

Aircraft Number (Registration) 9M-MRO

Valid Flight ID: MH370

URGENT REQUEST

Please contact Ho Chi Minh Air Traffic Control as soon as possible

Radio Detection and Range

Please acknowledge these messages

Malaysia Airline Systems

An automated 'acknowledged' response by ACARS; similar in meaning to 'the message was sent'.

An identifier for SITA, a service provider for ACARS messages.

Date and Time (UTC) in DD/HH/MM format

Please contact

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