The Aircraft Accident Investigation Bureau (AAIB) will make public this week its preliminary report on the Air India plane crash in Ahmedabad in which at least 260 people were killed on June 12, top Bureau officials told a Parliamentary panel on Wednesday.

While the report from investigators could be made public on Friday, the three sources cautioned Reuters that plans could change and there was no clarity on how much information would be available in the document,

The investigation into the Air India flight 171 crash is focusing on the movement of the engine fuel control switches, following an analysis of the Boeing 787's flight and voice data recorders