Chug,
Thanks. No, my bad, I meant the MAAIB, or MilAAIB as they are now called. Sorry for any confusion.
I noted that the Convening Authority's (I guess DGMAA) final remarks partially echo my points over the way the RTI was handled, and the safety hazard it presented. I have learned over the years that rushing into issuing Tis is usually a bad move. Making them complex is another bad move. NDT techniques should be a last resort. You should get rid of Tis as soon as practicable.
Good rule of thumb - do as little as possible to the aircraft to make it safe. Don't do more than you need, as it usually causes problems. All this applies in spades to explosive and armament systems. Sadly, experience levels are dropping and so is the level of understanding of the issues behind these rules of thumb.
Stay safe, all,
Best regards as ever
Engines