Tailspin turtle, only two problems with that scenario. One, there was no lightning with this particular complex; none detected by satellite, nor by ground stations. Apparently lightning is infrequent in the ITCZ. Two, the moon was behind them.
A LH 744 on the same track saw no lightning, but did have St. Elmo's fire.
Also,
Source:
http://cloudsat.cira.colostate.edu/d...04_E00_1AA.htm
click on segment 31 for the radar profiles of the mesoscale convective complex.