AMC 21.A.130(c)(1) Initial transfer of ownership    

CAA ORS9 Decision No. 1

Upon transfer of ownership:

a) For a complete aircraft, whether or not an application for a certificate of airworthiness is to be made, the CAA Form 52 must be completed and submitted to the CAA for validation.

b) For anything other than a complete aircraft  the  CAA Form 52  is  inappropriate,  and  the CAA Form 1 must be completed and submitted to the CAA for validation.

NOTE: If there is any significant delay between the last production task and presentation of the  CAA Form 52 or CAA Form 1 to the CAA, then additional evidence relating to the storage, preservation and maintenance of the item since its production must be presented to the CAA.