Many LAMEs think that, the moment an entry is made in the MR, the aircraft is grounded until that entry is "cleared". This is not true, and I will find the CAR references tomorrow, if you wish.
The regs are very clear that only a "major defect" can cause the MR to "cease to be in force" (i.e. aircraft is grounded), and examples are given of what constitutes "major defects". A removed radio is certainly not a major defect and does not even come close to being one.