In summary, of the possible flightpaths to the southern Indian Ocean, be it slightly west of Banda Aceh (requires an active pilot to repower SATCOM and for extensive manoeuvring) or the simple flightpath OVER Banda Aceh (aircraft on autopilot with failed left high gain antenna, unresponsive crew and serviceable right high gain antenna), statistically the endpoint is basically the same spot, 34S 93E.
The manoeuvring north of Sumatra would be depicted by multiple primary radar sites. However, the withheld primary radar recordings at Sabang ( 5°53'14"N 95°13'42"E), Lhokseumawe and Phuket ( 7°52'52"N 98°18'59"E) are not actually needed.
Nor is any CCTV footage at Banda Aceh.
Nor any mobile phone logons at Banda Aceh.
All that is needed is someone to complete the search as suggested in the ATSB’s First Principles Review 2-4 November 2016, Figure 11.