Lightning strike with small fuel leak?
A wild theory maybe, but is it probable that a lightning strike with an unfortunate case of small fuel leak?
A former colleague had a suspected tiny fuel leak ( about 200-300lbs per hour ) and he told me that he refused company orders for him to divert back to home base and some nearer airports because there were lightning storms all over those places. He even decided to avoid clouds like plague as they might have electrical discharges that could ignite the fuel from a small atomising fuel leak.