CentreFix25 asked''
"I just watched a documentary about the BA 747 that had a 4 engine failure when it sucked in volcanic ash over Indonesia. I've tried to find pics of this pebble dashed lump, but failed, anyone know of any?"
Aviate 1138 found just this......
The BA 747 flown by Capt Eric Moody had Rolls Royce RB211-524C2 -19 engines.
http://www.geo.mtu.edu/department/cl...er/engine.html Aviate 1138