Time:0041:43 MYT

MH370 DECODED
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Time:0041:43 MYT

0. Event Time and Type

Event Time:  00:41:43 MYT   Edit.

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Event Type: satcom acars   Edit.

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1. Summary ..................................................................................................Edit

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ACARS sent an OOOI B777 OFF Report at 00:41:43 MYT, triggered by a switch on the nose wheel asssembly after take-off.

A Position Report was also generated at this time:- at 0041:43 MYT recorded the aircraft altitude of 103 feet with an airspeed of 168.4 knots.

Position Reports were generated at five-minute intervals and were to be transmitted every 30 minutes. This position report was transmitted at 01:07:29 MYT.


Content below will be transcluded into the relevant Event Details Page.

2. Details .......................................................................................................Edit

  1. An Off-the-Ground Report was generated and sent by ACARS via Satcom:-
    Source: Safety Investigation Report MH370/01/2018 Appendix 1.9A


    Time
    16:41:43
    Trans
    46818633
    Direction
    Incoming Downlink
    AN
    9M-MRO
    FI
    MH0370
    Medium
    IOR2
    Machine
    MHKULKJACM001
    Raw DTG
    071641
    SMI
    M12
    Application
    RELAY
    Status
    Normal
    Message Type
    OOOI B777 OFF Report
    Source/Destination
    QXSXMXS

    QU DPCCAMH
    .QXSXMXS 071641
    M12
    FI MH0370/AN 9M-MRO
    DT QXT IOR2 071641 M02A
    - OFF01MAS370 /--071641WMKKZBAA
    1641 492


    Note: Additional ACARS messages relating to the OOOI Off-the-ground event are included in the ACARS Traffic Log for MH370 (9M-MRO).


  2. A position report was generated at 1641:43 UTC (00:41:43 MYT).

    Data collated for each position report is shown in Table 1.9A below:-

    For convenience, times recorded as UTC have been converted to MYT (UTC plus 8 hours).


    Greenwich Mean Time (GMT) - UTC 1641:43 1646:43 1651:43 1656:43 1701:43 1706:43
    Time (MYT) 00:41:43 00:46:43 00:51:43 00:56:43 01:01:43 01:06:43
    Altitude (ALT) – Feet 103 10,582 21,193 28,938 34,998 35,004
    Calibrated Airspeed (CAS) - Knots 168.4 261.8 301.1 303.1 278.0 278.4
    MACH 0.255 0.478 0.669 0.783 0.819 0.821
    Total Air Temperature (TAT) - °C 31.1 23.4 11.6 2.6 -13.4 -13.1
    Static Air Temperature (SAT) - °C 27.3 10.4 -11.8 -27.4 -43.9 -43.8
    Latitude (LAT) 2.767 3.074 3.553 4.109 4.708 5.299
    Longitude (LONG) 101.715 101.760 101.988 102.251 102.534 102.813
    Gross Weight (GWT) – lb 492,520 489,200 486,240 483,840 481,880 480,600
    Total Remaining Fuel Weight (TOTFW) - kg 49,200 47,800 46,500 45,400 44,500 43,800
    Wind Direction (WINDIR) 140.3 107.6 91.8 58.4 69.6 70.0
    Wind Speed (WINDSP) 1.25 9.38 19.50 10.63 17.38 17.13
    True Heading (THDG) -33.5 27.3 27.8 26.0 26.8 26.7

    Notes:-

    • Time shown here as MYT, or UTC plus 8 hours, has been added to the original Table 1.9A.
    • Values in bold have been corrected using data from the original ACARS position report

    Table 1.9A - ACARS Position Report
    Source: Safety Investigation Report MH370/01/2018 1.9 Communications


  3. Refer to Communications:9M-MRO Position Report




3. Notes .........................................................................................................Edit

  1. The acronym OOOI refers to four flight stages which are: Out of the gate, Off the ground, On the ground, and Into the gate.
    See 9M-MRO OOOI Reports.

  2. Position Reports were generated at five-minute intervals and were to be transmitted every 30 minutes. However, the collated Position Report transmitted at 01:07:29 MYT was only one sent.

  3. Some details for Kuala Lumpur International Airport:-

    • Latitude 02°44'44.08" N
    • Longitude 101°42'35.70" E
    • Elevation 69ft / 21m

    Source: https://www.malaysiaairports.com.my/about-us/corporate-profile/our-airports


  4. The recorded altitude of 103 feet and airspeed of 168.4 knots is consistent with the off-the-ground status as per the OOOI report generated at the same time.




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