HAM
I remember HAM in Shiraz one particular occasion after an inspection [which involved cleaning the compressor blades with solvent] the jar used in this inspection was left in the intake and bang yes it was ingested into the engine much to Franks dismay. The only other gnome was on overhaul [at Leavesdon I believe] it took us a while to get the thing back in the air again.
It finally met its demise I think off Busher after an engine failure and a 'mysterious' float deflation [it was on pontoons at the time] resulting in its sinking!
It think the 204 involved in the Oman operation was the other 204 Lycoming powered EP-HBF? both based at Shiraz whilst I was there along with an Allouette III [HBN]