The Augusta Bell 206 and the Bell 206 helicopters are separately type certificated and have different instructions for continuing airworthiness (Life limits, maintenance manuals, repair data etc) that are approved by their respective States of Design i.e. EASA and Transport Canada. Consequently, there are several differences between the ICA's (Instructions for Continuing Airworthiness). Great care must be taken to ensure that the correct airworthiness directives, maintenance data and other instructions which form part of the ICAs' for the type are available and used.
In summary, there has been no change to the status of the information letters published by the type certificate holders for some years. There are no changes being considered that may alter the position that the letters describe.
The helicopters must comply with their applicable Type Certificate, be constructed from correctly configured conforming parts and be maintained using the correct instructions for continuing airworthiness. Failure to ensure that the helicopter is correctly configured and maintained will result in an unairworthy aircraft and invalidate its certificate of airworthiness.
The Bell 206 was certified by the TCCA and subsequently an EASA Type Certificate was issued Ref. EASA.IM.R.512. Prior to the issue of this Type Certificate the type had been certified by the individual European authorities.
The Agusta Bell 206 (Leonardo S.p.A) was certified by ENAC on 8 August 1967 and subsequently an EASA Type Certificate was issued Ref. EASA.R.140.