63.31—Eligibility requirements; general.
         To be eligible for a flight engineer certificate, a person must—
    
    
    
        
        (b) 
         Be able to read, speak, and understand the English language, or have an appropriate limitation placed on his flight engineer certificate;
    
    
        
        (c) 
         Hold at least a second-class medical certificate issued under  part 67 of this chapter within the 12 months before the date he applies, or other evidence of medical qualification accepted for the issue of a flight engineer certificate under  § 63.42; and