I understand that SI/Chinook/57 is in two parts; initial application and subsequent inspection. The initial application requires the marking of "witness lines" across the connectors and the receptacales on the DECU box. Subsequent inspections call for a check for movement by reference to the witness lines.
Question 1. When a DECU box is replaced it is most unlikely that the witness lines on the receptacles of the new box will line up with those on the aircraft connectors. Do we clean everything off and start again with "initial application"?
Questuion 2. When subsequent inspections are carried out in-flight (every 15 mins), who signs for them, and where are they recordered? Perhaps the Chinook as the sort of sign up sheet we see for public toilet cleaning. "This connector was checked at ______ hrs, by ______. Next inspection due at _____"
DV