Smudge'
By "validity" I meant if an ADD was still 'open' or if the defect had been rectified, & signed off, thereby 'closed'. I don't think I ever saw an 'open' ADD at GSM since March 2008. The GSM/BCT cover was THAT good.
There's a shocker for you, Smudge, it was GSM that I worked for & yes their serviceability rates left a fair bit to be desired for a period & yes their reputation suffered.
After November 2007 when a new DFO was appointed & we had CAA audit after CAA audit, eventually, GSM Maintrol & Engineering eventually got it's sh*t together. When GSM finally met it's demise, the standard of Line support was 1st rate.
Like I stated earlier, I know a couple of GSM's 'own' B767 engineers were ex-MON & the 'connies' were ex- just about every UK major B757/767 operator. And as a result, BCT provided GSM with the same thoroughly professional service for a fraction of MON's price.
MON are excellent but there are more affordable options of an equal standard.
Top Drawer doesn't always have to be Top Dollar.
