Text in force at 27-51: from 27-18, effective 14 Oct 1980.
[The applicant must prepare Instructions for Continued Airworthiness in accordance with Appendix A to this Part that are acceptable to the Administrator. The instructions may be incomplete at type certification if a program exists to ensure their completion prior to delivery of the first rotorcraft or issuance of a standard certificate of airworthiness, whichever occurs later.]
45 FR 60177 · Source