Easy to jump on the crew, but:
- If they were using from the C Tank, would it not be quite difficult to "identify" the leak location (as fast as the R Inner Tank depletes it is topped up from the Centre)?
- Ditto use of Reverse - and not sure a drill ever says avoid reverse on a running engine?
- One reason to vacate, or at least not immediately shutdown, would be to position the aircraft with the affected engine / area downwind of the fuselage. As above, difficult to do until you have evidence of where the problem is.
Please NB this crew identified the problem, diverted, landed safely with seemingly nil damage, drama or injuries - unlike other well known occurrences. I am sure with 20:20 hindsight some things could have been optimised.
Having recently done Fuel Leak Sim training, in today's dumbed down world of following the drills, little emphasis on the effects of the fuel itself - all about management and especially avoiding use of crossfeed. I also think some of the above posters think Jet aircraft use Avags, rather than fairly inert Avtur
