Krystal, a duplicate inspection is indeed routine if oil has been replenished on more than one engine. Which is most days.
Oil caps have been left off engines before.
Not everywhere.
'ETOPS Maintained' requires different persons or different methods (EG hand pump or gravity fill) on each engine. Some operators/regulators require separate signatures in the log, others pay lip service to 'best practice'.
If UK registered A320s or B737s requires a duplicate inspection after oil servicing then I am seriously out of compliance.
One photo showed a slide coming down from the back of the port wing. Having recently been on a BA safety training course, I didn't think such a slide existed?
And was it really wise to use those overwing exits when the engines were in such a state? Even if neither was on fire after landing, would the mess of hot exposed metal in the presence of fuel not be a potential fire risk?
Erm, what hot exposed metal? The fan cowl covers the accessories on the fan case. They don't get that hot.