Since no one was posting to my thread I gave up putting up any info here
I guessed the pprune community was insulted by an SLF daring to post in their hallowed world.
A friend of an acquaintance is working with maintainance at CO in IAH. He will let us know what was wrong with the aircraft.
LH499 MEX-FRA made a rather quick landing in PHL yesterday morning:
http://flightaware.com/live/flight/D...412Z/MMMX/KPHL
It continued a few hours later and landed 6h late in FRA.