Subsequent to consulting a NASA paper, I get the answer : Andrew Browne Co primers, however I wonder whether the business has been folded......So why doesn't Boeing strike it from AMM?
Regarding a page of AMM/Consumable material specification, which I 've just sent an email enclosed with, do you have any idea on what is "Andrew Brown System" in connection with the BMS10-11 primer?
Thanks Mark! Nope FIM never suggests the panel itself and jumping the pins just my idea to double confirm the finding. FiM just general wiring issue from P33 to panel.