BD764 and BE144 — named radar feeds, and a gap after 18:02:59 UTC
Secondary ends with the transponder · primary westbound · later points still to source
The working chart labels two Malaysian Air Defence datasets: BD764 (secondary, 10-second intervals, early flight, ends 01:21 MYT with the transponder) and BE144 (primary, 10-second intervals, westbound after the turn, ends 18:02:59 UTC). The 2018 reconstruction then shows a last military return at 18:22:12 UTC after a gap. Those later points exist in the official track. Their raw source is not public.
Do not treat the labels as a new detection. Civilian secondary loss at 17:21 UTC / 01:21 MYT, a westbound primary track, a paint near Pulau Perak around 18:02, a gap, and a last return at 18:22:12 are already in the 2018 report and in this file. What the chart adds is the dataset names and the explicit unanswered line: if BE144 stops at 18:02:59, what produced 18:15:25–18:22:12? Until the raw military file is published or a later feed is identified, file the split as open. Altitude and speed blips beyond 777 performance are already the report’s own caution on that primary file — a track of a 777, not a flight-data recorder.
Sources
- Working chart · radar story
- Malaysian Safety Investigation Report 2018 — military primary reconstruction
Related
The radar story and the 9 March cyberattack
Working chart · tracks, delays, and a spear-phish of the investigation
Malaysian military primary-radar track
17:21–18:22 UTC · westbound after IGARI
West-track disclosure lag — ministerial 10:30, ARCC 22:30, Thai 9–10 days
8 March and 18–19 March 2014