Timeline/Response/ATC/0218:50 MYT
Event Summary
KL ACC queried if the flight plan routing of MH370 was supposed to enter Cambodian airspace. HCM ACC confirmed that the planned route was only through the Vietnamese airspace. HCM ACC had checked and Cambodia had advised that it had no information or contact with MH370. HCM ACC confirmed earlier information that radar contact was lost after BITOD and radio contact was never established.
At 0220:15 MYT KL ACC queried if HCM ACC was taking Radio Failure action, but the query didn’t seem to be understood by the personnel. HCM ACC suggested KL ACC to call Malaysia Airlines Operations and was advised that it had already been done.
Event Details
Safety Investigation Report MH370/01/2018 1.18.1 SIR 2018:1 Factual Information/1.18/1.18.1/6 Chronology of Activities after Notification by HCM ACC - ATC Activities after Notification by HCM ACC
KL ACC queried if the flight plan routing of MH370 was supposed to enter Cambodian airspace. HCM ACC confirmed that the planned route was only through the Vietnamese airspace. HCM ACC had checked and Cambodia had advised that it had no information or contact with MH370. HCM ACC confirmed earlier information that radar contact was lost after BITOD and radio contact was never established. KL ACC queried if HCM ACC was taking Radio Failure action, but the query didn’t seem to be understood by the personnel. HCM ACC suggested KL ACC to call Malaysia Airlines Operations and was advised that it had already been done.
Safety Investigation Report MH370/01/2018 2.2.7 Table 2.2C - Chronology of ATC Events following the Disappearance of MH370
KL ACC queried if flight planned routing of MH370 was supposed to enter the Cambodian airspace. HCM ACC confirmed that planned route was only through the Vietnamese airspace. HCM ACC had checked and Cambodian had advised that it had no information on or contact with MH370. HCM ACC confirmed earlier information that radar contact was lost after BITOD and radio contact was never established.
Safety Investigation Report MH370/01/2018 Table 2.2F- Direct Line Communication Exchanges between KL ACC and HCM ACC
No. Time [MYT] Direct-Line Communication Exchanges 7. 0218:50 -
0223:05KL ACC initiated the call and queried if the flight plan routing of MH370 was supposed to enter Cambodian airspace.
HCM ACC confirmed that the planned route was only through the Vietnamese airspace. HCM ACC also informed that it had checked and also been advised by Cambodia that it had no information or contact with MH370. HCM ACC confirmed that earlier information on loss of radar contact after BITOD, and radio contact, was never established.
KL ACC queried if HCM ACC was taking Radio Failure action but the query did not seem to be understood by the personnel.
HCM ACC suggested KL ACC to call MAS Operations and was advised that it had already been done.Safety Investigation Report MH370/01/2018 Appendix 1.18G
Direct Line Telephone Conversation Between KL ATCC Sector 3 +5 Planner and HCM ATCC Time Source CONTENT 1818:50 UTC
(0218:50 MYT)HCM ATCC hello. 1818:51 UTC
[0218:51 MYT]KL ATCC Ho Chi Minh. 1818:53 UTC
[0218:53 MYT]HCM ATCC Liau. 1818:53 UTC
[0218:53 MYT]KL ATCC Okay the reference to Malaysian Three Seven Zero confirm you received the flight plan. 1819:02 UTC
[0219:02 MYT]HCM ATCC Affirm. 1819:03 UTC
[0219:03 MYT]KL ATCC Okay aah… the flight plan suppose to be over Ho Chi Minh or over Cambodia. 1819:10 UTC
[0219:10 MYT]HCM ATCC Originally over Ho Chi Minh. 1819:12 UTC
[0219:12 MYT]KL ATCC Okay and then aircraft didn't enter Ho Chi Minh confirm. 1819:18 UTC
[0219:18 MYT]HCM ATCC Aaah… According to the record the aircraft passing that position IGARI disappear radar symbol. 1819:26 UTC
[0219:26 MYT]KL ATCC Ah ha 1819:26 UTC
[0219:26 MYT]HCM ATCC Naaa…five minutes … later. 1819:30 UTC
[0219:30 MYT]KL ATCC Hmm hmm. 1819:31 UTC
[0219:31 MYT]HCM ATCC Is gone and we try with many capacity to call him 1819:36 UTC
[0219:36 MYT]KL ATCC No aft after IGARI confirm after IGARI you have lost radar contact after IGARI. 1819:44 UTC
[0219:44 MYT]HCM ATCC After position BITOD. 1819:46 UTC
[0219:46 MYT]KL ATCC BITOD aircraft aaah… lost radar contact. 1819:50 UTC
[0219:50 MYT]HCM ATCC Aaah… disappeared. 1819:53 UTC
[0219:53 MYT]KL ATCC Disappeared okay. 1819:56 UTC
[0219:56 MYT]KL ATCC Okay eer… 1819:56 UTC
[0219:56 MYT]HCM ATCC Yeah. 1819:57 UTC
[0219:57 MYT]KL ATCC And then…… the aircraft daa… still until now you don't have any radar contact. 1820:02 UTC
[0220:02 MYT]HCM ATCC Not at all. 1820:04 UTC
[0220:04 MYT]KL ATCC Not at all okay what about Ho Chi Minh aah… aah Cambodia. 1820:09 UTC
[0220:09 MYT]HCM ATCC They said they have no information. 1820:15 UTC
[0220:15 MYT]KL ATCC No information so you are taking radio failure action. 1820:19 UTC
[0220:19 MYT]HCM ATCC Pardon. 1820:20 UTC
[0220:20 MYT]KL ATCC You are taking necessary action for the aircraft. 1820:24 UTC
[0220:24 MYT]HCM ATCC Position operation. 1820:26 UTC
[0220:26 MYT]KL ATCC Those radio failure action and naa that action. 1820:36 UTC
[0220:36 MYT]HCM ATCC What do you mean by that. 1820:38 UTC
[0220:38 MYT]KL ATCC No confirm that you are in contact with Malaysian Three Seven Zero now. 1820:43 UTC
[0220:43 MYT]HCM ATCC Just one time. 1820:45 UTC
[0220:45 MYT]KL ATCC Once only. 1820:46 UTC
[0220:46 MYT]HCM ATCC Once but aah… by radar symbol. 1820:51 UTC
[0220:51 MYT]KL ATCC I am asking radio contact. 1820:55 UTC
[0220:55 MYT]HCM ATCC No voice. 1820:56 UTC
[0220:56 MYT]KL ATCC No voice communi communication. 1820:58 UTC
[0220:58 MYT]HCM ATCC Yeah. 1820:59 UTC
[0220:59 MYT]KL ATCC Okay and daa… so you’re your advice me when you receive aah any information about this aircraft. 1821:09 UTC
[0221:09 MYT]HCM ATCC So far…is coming up three zero minutes and naa I afraid that something wrong with him but I don't know what. 1821:21 UTC
[0221:21 MYT]KL ATCC Hmm okay according to the. 1821:23 UTC
[0221:23 MYT]HCM ATCC Actually actually should be appear by radar. 1821:27 UTC
[0221:27 MYT]KL ATCC Hmm… 1821:28 UTC
[0221:28 MYT]HCM ATCC But then naa…Ho Chi Minh naa eight zero miles from Tan Tansonnhat but is something wrong nothing. 1821:36 UTC
[0221:36 MYT]KL ATCC Nothing yet. 1821:37 UTC
[0221:37 MYT]HCM ATCC Just radar…just aa… flight plan track you know what. 1821:41 UTC
[0221:41 MYT]KL ATCC Just flight plan track only. 1821:43 UTC
[0221:43 MYT]HCM ATCC Ah ha. 1821:44 UTC
[0221:44 MYT]KL ATCC You confirm just flight plan track only. 1821:47 UTC
[0221:47 MYT]HCM ATCC Just flight plan track only. 1821:51 UTC
[0221:51 MYT]KL ATCC Okay naa thank you advise me if you have any information. 1821:56 UTC
[0221:56 MYT]HCM ATCC So so so you get the just daa you contact with the his company and na I think there's some like ah the internal call. 1822:09 UTC
[0222:09 MYT]KL ATCC Aah no I already inform the company. 1822:13 UTC
[0222:13 MYT]HCM ATCC Eer… ha. 1822:14 UTC
[0222:14 MYT]KL ATCC Okay so the company already. 1822:15 UTC
[0222:15 MYT]HCM ATCC What did they say. 1822:17 UTC
[0222:17 MYT]KL ATCC Nah I am not sure but the company already sent signal to the aircraft to contact relevant ATC unit. 1822:24 UTC
[0222:24 MYT]HCM ATCC Yeah but aa… I would like to know after IGARI have you received any signal or any voice contact or something like aah radar symbol. 1822:38 UTC
[0222:38 MYT]KL ATCC Negative. 1822:39 UTC
[0222:39 MYT]HCM ATCC Before you transfer to me. 1822:40 UTC
[0222:40 MYT]KL ATCC Yeah after after I transfer and then naa… we aa… I mean no other information after IGARI. 1822:49 UTC
[0222:49 MYT]HCM ATCC But before IGARI before in your airspace what aa… was it work. 1822:55 UTC
[0222:55 MYT]KL ATCC It is working until IGARI. 1822:58 UTC
[0222:58 MYT]HCM ATCC Working normally. 1823:00 UTC
[0223:00 MYT]KL ATCC Affirm affirm working normal until IGARI. 1823:03 UTC
[0223:03 MYT]HCM ATCC Yeah … okay okay thank you. 1823:05 UTC
[0223:05 MYT]KL ATCC Thank you. End of Direct Line Telephone Conversation Between KL ATCC Sector 3 +5 Planner and HCM ATCC
Notes
- The question about 'radio failure action' was actually asked (by KL ATCC) at 0220:15 MYT.
- Inclusion of extracts from both Table 1.18E and Table 2.2C may appear to be duplication. However, the tables contain different events, and where the events are the same, the wording may be slightly different. Both versions are included for consistency.
- The context of Table 1.18E is the Factual Information in the Safety Investigation Report MH370/01/2018 and the context of Table 2.2C is the Analysis section.