Certification of normal category rotorcraft. 

 - [Washington, D.C.,  1989]. 
 - v. 
<br/><br/> Advisory circular.  Apr. 4, 1989.  Shipping list no. : 89-363-P.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rotors (Helicopters)--Standards--United States.
<br/><br/><label>GPO Item No.: </label>0431-A-27 
<br/><br/><label>Gov. Doc. Class. No.: </label>TD 4.8/5:27-1/CH.2