
    No. 80-848.
    No. 80-883.
    Piper Aircraft Co. v. Reyno, Personal Representative of the Estates of Fehilly et al.; and Hartzell Propeller, Inc. v. Reyno, Personal Representative of the Estates of Fehilly et al.
   C. A. 3d Cir. [Certiorari granted, 450 U. S. 909.] Motion of Boeing Co. et al. for leave to file a brief as amici curiae granted.  