Filler Dent
Have you read the report on Airbus A319-131, G-EUOE, 24 May 2013?
Viewable
here...
If you open the cowls, you put an entry in the Tech log.
"ENG #1 cowls opened for .........whatever"
When you shut them you close the entry.
"ENG #1 cowls closed, secured and latched satisfactory"
Simple.
It gives visibility and responsibility to all concerned.
It's in the AMM, company procedures - no excuse.
You forgot
"Carry out verification check of ENG #1 cowl latches"
"Verification check carried out of ENG #1 cowl latches, all secure."
It's in the AMM, company procedures - no excuse.