Time:0203:41 MYT: Difference between revisions
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
<div class="small-10 small-offset-1 columns" align="left" > | <div class="small-10 small-offset-1 columns" align="left" > | ||
<div class="panel"> | <div class="panel"> | ||
<p>References for events at or about the time of 0203:41 MYT, 8 March 2014 (1803:41 UTC, 7 March 2014). </p> | <p>References for events at or about the time of {{PAGENAME}} 0203:41 MYT, 8 March 2014 (1803:41 UTC, 7 March 2014). </p> | ||
<!-- <p>The source document is cited first (with a link to the full text), followed by one or more relevant extracts. </p> --> | <!-- <p>The source document is cited first (with a link to the full text), followed by one or more relevant extracts. </p> --> | ||
<div class="row"> <!-- Turn back or diversion from original flight plan 0121:13 MYT to 0222:12 MYT --> | <div class="row"> <!-- Turn back or diversion from original flight plan 0121:13 MYT to 0222:12 MYT --> | ||
Revision as of 14:14, 26 January 2019
Narrative
<section begin=Narrative />
02:03:41 MYT
SATCOM: No acknowledgement from aircraft SDU
At 0203:23 MYT MAS ODC attempted to contact the aircraft by sending a text message to the cockpit printer, via ACARS. The service provider, SITA, would have forwarded the message to Inmarsat for transmission to the aircraft via a satellite communications datalink.
The Inmarsat GES initiated a DATA-2 ACARS transmission (uplink) at 1803:41 UTC (0203:41 MYT), but received no acknowledgement from the SDU on the aircraft 9M-MRO. Therefore, the SATCOM Link was lost at sometime between 0107:48 MYT and 0203:41 MYT.
There is no evidence of a cockpit-initiated manual Log-Off of the SATCOM.
<section end=Narrative />
References
Item 1
- RefID:Factual Information March 2015/1.9.5.4
1.9.5.4 SATCOM Ground Station Logs - Key Observations in Chronological Order
7. 1803:41 - GES initiates a DATA-2 ACARS transmission (uplink), but receives no acknowledgement from the SATCOM.
a. Therefore, the SATCOM Link was lost at sometime between 1707:48 and 1803:41.
b. There is no evidence of a cockpit-initiated manual Log-Off of the SATCOM.
Notes
- 1707:48 UTC is 0107:48 MYT
- Because the SDU on the aircraft did not respond, at 1803:41 UTC and again at 1805:11 UTC, the ACARS message could not be sent. Therefore ACARS returned the message to MAS ODC with the message type MAS-F (failed) at 0206:25 MYT).