Originally Posted by
wrench1
FWIW: have no clue in using a TCDS on a 737, but have used them on a semi-regular basis over the years on GA rotor/fixed wing aircraft for the issue/reissue of AWC/CoAs, compliance of conformity checks, etc. While I'm about as far away as you can get from an "entrenched bureaucrat," I would hate to see what type of document you would prefer to use for these regular certificate issuances/checks considering a TCDS is but a "sliver" of the aircraft certification documentation process.
For starters, the 737 TCDS covers 14 series, the latest variants bearing no resemblance to the original. Bringing it closer to home, the TCDS for the AS-350 (H9EU) encompasses 10 aircraft, including the EC-130 variant. My quick, cursory glance of the B3 type section lists maximum weights, rotor speeds, and T4 limits all of which are different in the RFM. Very little is correct. The system is badly broken.