Air2gxs From , joined Dec 1969, posts, RR:
Reply 1, posted (10 years 9 months 3 weeks 6 days 1 hour ago) and read 2020 times:
You flush a static system with air. The basic procedure is to disconnect all instruments, cap all fittings, supply air (15 psi max per B757 AMM), and remoce and cap fittins 1 at a time in order to completely flush debris/moisture from the system.
If for some reason you need to clean the outside, just wipe it down. use no abrasives or solvents that may cause any distortation of the port or surrounding area.