Time:Radar/0151:45 to 0152:35 MYT

Time:Radar/0151:45 to 0152:35 MYT

0. Event Time and Type

Event Time:  01:51:45 to 01:52:35 MYT   Edit.

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Event Type: radar civilian   Edit.

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

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ATC Radar Observation P3426: 0151:45 to 0152:35 MYT

At 0151:45 MYT, a “blip” coded as P3426 appeared south of Penang Island but disappeared at 0152:35 MYT.

Note: DCA ATCC radar controllers did not notice a strayed or unidentified aircraft within their area of responsibility.

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

1. Safety Investigation Report MH370/01/2018 1.1.3 2) DCA Civilian Radar Data from Kota Bharu - Sultan Ismail Petra Airport Runway

   The aircraft diversion from the filed flight plan route was recorded on the DCA radar playback:

   • ...
   • e) At 1751:45 UTC [0151:45 MYT] an aircraft target, coded as P3426, appeared on the KL ACC radar display but disappeared at 1752:35 UTC [0152:35 MYT].

2. Safety Investigation Report MH370/01/2018 1.1.3 Figure 1.1C - Diversion from Filed Flight Plan Route - Civilian Radar

   P3426: Appeared at 1751:45 UTC [0151:45 MYT]

   P3426: Coasted at 1752:25 UTC [0152:25 MYT]
   Dropped at 1752:35 UTC [0152:35 MYT]
   P3426 last seen on radar display
   Approximately 6 nm south of Penang

3. Safety Investigation Report MH370/01/2018 1.1.3 4) Kuala Lumpur ACC Radar

   From 1730:37 UTC [0130:37 MYT] to 1752:35 UTC [0152:35 MYT], what appeared to be MH370 was captured on KL ACC primary radar, coded as P3362, P3401, P1415, P3415 and P3426 (P signifies Primary Radar).
   Figure 1.1C - Diversion from Filed Flight Plan Route.

   ...

   At 1751:45 UTC [0151:45 MYT], a “blip” coded as P3426 appeared south of Penang Island but disappeared at 1752:35 UTC [0152:35 MYT].

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

1. Safety Investigation Report MH370/01/2018 1.1.3 2) DCA Civilian Radar Data from Kota Bharu - Sultan Ismail Petra Airport Runway

   It has been confirmed by DCA and its radar maintenance contractor, Advanced Air Traffic Systems (M) Sdn. Bhd. (AAT), that it was the 60 nm Terminal Primary Approach Radar, co-mounted with 200 nm monopulse SSR3 located to the south of Kota Bharu - Sultan Ismail Petra Airport runway, which captured the above-mentioned primary aircraft targets.

2. Safety Investigation Report MH370/01/2018 1.1.3 2) DCA Civilian Radar Data from Kota Bharu - Sultan Ismail Petra Airport Runway

   All the primary aircraft targets that were recorded by the DCA radar are consistent with those of the military data that were made available to the Investigation Team.

3. Safety Investigation Report MH370/01/2018 2.2.8 ATS Operational Issues after Last Radio Communication with MH370 and subsequent ATS Activities/Actions

   l) ATC Actions on Strayed/Unidentified Aircraft (Primary Radar Target) within the Area of Responsibility

   • i) At 1730:37 UTC [0130:37 MYT] a strayed/unidentified aircraft (primary radar target) appeared on the Sector 3+5 radar display at approximately 57 nm north east of Kota Bahru and heading to Kota Bahru. This aircraft target dropped off from the radar display at 1737:22 UTC [0137:22 MYT]. It reappeared at 1738:56 UTC [0138:56 MYT], on airway B219 heading towards VPG36 and dropped off at 1744:52 UTC [0144:52 MYT]. The appearances and reappearances of these strayed/unidentified primary targets on Lumpur Sector 3+5 radar display were for a duration of 6 minutes 45 seconds and 5 minutes 56 seconds respectively. The duration of the strayed/unidentified aircraft appearing on the Lumpur Sector 3+5 radar display was 12 minutes and 41 seconds. When the strayed/unidentified aircraft continued its journey towards VPG, it entered into the Lumpur Sector 1 Area of Responsibility.
   
   
   • ii) On the Lumpur Sector 1 radar display, the strayed/unidentified aircraft (primary radar target) appeared at 1747:02 UTC [0147 MYT] and dropped off at 1748:39 UTC [0148:39 MYT]; and reappeared at 1751:45 UTC [0151:45 MYT] and dropped off at 1752:35 UTC [0152:35 MYT]. The duration of the strayed/ unidentified aircraft appearing on Lumpur Sector 1 radar display was 2 minutes 27 seconds.
     Note
     Information on strayed/unidentified aircraft (primary radar target) was obtained from radar recording playback.
   
   
   • iii) In interviews with the ATCOs on duty, the Sector 3+5 and Sector 1 Radar Controllers informed that they were unaware of the strayed/unidentified aircraft (primary radar target) transiting their AORs.
     The Sector 3+5 Radar Controller acknowledged that he had to shift his attention to four other aircraft in another area, viz. VPK approximately 214 nm south of IGARI). As such, he did not observe the strayed/unidentified aircraft (primary radar target).
     The Sector 1 Radar Controller stated that he did not observe the strayed/unidentified aircraft (primary radar target) even though he remained at the Controller working position.

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1751:45 UTC [0151:45 MYT] 2) DCA Civilian Radar Data from Kota Bharu - Sultan Ismail Petra Airport Runway

e) At 1751:45 UTC [0151:45 MYT] an aircraft target, coded as P3426, appeared on the KL ACC radar display but disappeared at 1752:35 UTC [0152:35 MYT].

IIt has been confirmed by DCA and its radar maintenance contractor, Advanced Air Traffic Systems (M) Sdn. Bhd. (AAT), that it was the 60 nm Terminal Primary Approach Radar, co-mounted with 200 nm monopulse SSR located to the south of Kota Bharu - Sultan Ismail Petra Airport runway, which captured the above-mentioned primary aircraft targets.

1751:45 UTC [0151:45 MYT] 4) Kuala Lumpur ACC Radar

At 1751:45 UTC [0151:45 MYT], a “blip” coded as P3426 appeared south of Penang Island but disappeared at 1752:35 UTC [0152:35 MYT].

References for events at or about the time of 0151:45 MYT, 8 March 2014 (1751:45 UTC, 7 March 2014).

The source document is cited first (with a link to the full text), followed by one or more relevant extracts.

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Air Turn Back

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Narrative

<section begin=Narrative />

01:51:45 MYT

DCA Civilian Radar Data from Kota Bharu

At 1751:45 UTC (0151:45 MYT) an aircraft target, coded as P3426, appeared on the KL ATCC radar display but disappeared at 1752:35 UTC (0152:35 MYT).

<section end=Narrative />

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References

Item 1

Factual Information MH370/01/15/1.1.3}}

b) DCA Civilian Radar Data from Kota Bharu

At 1751:45 UTC (0151:45 MYT) an aircraft target, coded as P3426,appeared on the KL ATCC radar display but disappeared at 1752:35 UTC (0152:35 MYT).

Notes

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

Coordinated Universal Time

a spot of light on a radar screen indicating the position of a detected aircraft (Source: Safety Investigation Report)

Department of Civil Aviation (Malaysia)

Air Traffic Control Centre

An aircraft that has been observed or reported to be operating in a given area but whose identity has not been established.

Kuala Lumpur Area Control Centre (or Air Traffic Control Centre)

Filed Flight Plan – The flight plan as filed with an Air Traffic Services unit by the pilot or his designated representative, without any subsequent changes.

Area Control Centre (or Air Traffic Control Centre)

Abbreviation for Berhad, meaning Private. Used for a private limited Company

Advanced Air Traffic Systems (M) Sdn. Bhd. - radar maintenance contractor for DCA (Malaysia)

Air Traffic Services

Air Traffic Control

Waypoint Country SG Latitude 6° 56' 10.00" N Longitude 103° 35' 6.00" E

Secondary Surveillance Radar - A surveillance radar system which uses transmitters/receivers system (interrogators) and transponders.

Kuala Lumpur Air Traffic Control Centre