با توجه به ص 30 از part-21 موارد زیر بایستی در AD ذکر گردد:
An airworthiness directive shall contain at least the following information:
1. an identification of the unsafe condition;
2. an identification of the affected aircraft;
3. the action(s) required;
4. the compliance time for the required action(s);
5. the date of entry into force.