Thank you for the speedy reply.
It's actually an integrated VHF NAV/COM (with no external CDI), which I see is not covered by Item 17.
So the undoing of the retaining screw must be carried out by a fully qualified, experienced and competent avionics engineer, which means that the aircraft must be flown to such, transport back provided, then a full reversal of process once repair completed........for one screw.
I appreciate that testing, calibration and/or certification must be undertaken by a B2 engineer but undoing a screw....do be serious.
I can take a wing off and put it back on but not undo a screw to slide out a 'plug n play' unit.
Amazing....this can only have been written by an aviation authority 'specialist'.
