The conflict highlighted by many posts above is that between the "Technical Log" and the "Aircraft Continuing Airworthiness Records" - of which, along with the aircraft, engine and propellor (and any other life limited parts) log books, it forms part. In airline operations the technical records system is usually a computer based information system and the Technical Log is the only paper document in general use on a day to day basis.
Assuming that Agusta is European based and under the EASA system, most continuing airworthiness tasks are accomplished during scheduled maintenance visits, at the conclusion of which a single Certificate of Release to Service is issued by the Category 'C' licence holder overseeing the check. In this case, much of what was done and what systems were disturbed is not shown in the Technical Log and is therefore not easily available to either the aircraft crew or Line Maintenance personnel. Airworthiness Directives, Service Bulletins and modifications that affect aircraft performance or the way the aircraft or its systems are operated will always be entered into the Technical Log; the other mass of maintenance information is entered onto task cards and, at the end of the check, filed away in the archives.
The Technical Records do however, remain available to Line Maintenance and this is usually done under a "Read Only" permission granted to Maintenance Control. I doubt that most Line Engineers have the time or patience to bother with rifling through a complex records system for information on what was done during the last hangar check, but if they really are interested, access can certainly be provided. Try asking the person who is responsible for System Security in your organization.