A letter of no technical objection from a manufacturer is just that. You must still approach the appropriate authority letter in hand for the change to your AFM procedure to be approved...remember that manufacturer SOP`s are not certified - you must check that the SOP you are changing is not an AFM procedure, if it is your AFM will need changing.
The manufacturer writes the AFM and presents it for approval to the certifying authority - any subsequent changes must be approved as well
Absolutely agree that if we all followed the KISS method and forwarded requests and motivations for changes to the manufacturers things would be clear cut and simple. They know which procedures are AFM and which are not and will change AFM procedures and get the change approved as a matter of course. If you select to let them run your entire set of books the rest of your documentation will also be updated.
Last edited by groundfloor; 23rd Sep 2009 at 21:43.