Timings are all out of sync', which helps no-one and serves no useful purpose only to cloud the issue and muddy the waters...
However, once you realise that different clocks are being used to gauge timings, a clearer picture begins to emerge...
To help everyone to understand, I propose to introduce the following useful terms to try and simplify the matter:-
(1) - Individual time reference (ITR)
(2) - Group time reference (GTR)
(3) - Real time reference (RTF)
The question I would pose regarding the time of arrival at the scene of the occupants of CA07 (3.48hrs), and the arrival of Jeremy at the scene (3.52hrs), is which time reference, or clock was being relied upon when those timings were produced?