The Release To Service (RTS) authorizes Military Operated (In-Service) Defence Air Environment (DAE) Operating Category flying on behalf of the responsible Senior Duty Holder. Any failure by operators or the Aviation Duty Holder to observe RTS limitations may result in unacceptable hazards to aircrew or other parties.
An Approval for Return to Service is a documentation in your aircraft's logbook with the signature and certificate number of the person approving your aircraft for return to service. It is a written certification that tells you whether or not the aircraft is airworthy and ready to fly.
The aircraft certificate of release to service should contain the following statement: (a) 'Certifies that the work specified except as otherwise specified was carried out in ance with Part-M and in respect to that work the aircraft is considered ready for release to service'.
The aircraft return to service statement, often referred to as CRS (certification for release to service) is the most important document to keep an aircraft flying. It contains the signature and certificate number of the person approving the aircraft for return to service and is part of the aircraft's logbook.
50(d), a certificate of release to service is issued by appropriately authorised staff at the completion of any maintenance on a component, whilst the component is off the aircraft.