(a) Execution against personal property.--An execution against personal property must be issued within 20 years after the entry of the judgment upon which the execution is to be issued.
(b) Instruments under seal.--
(1) Notwithstanding section 5525(7) (relating to four year limitation), an action upon an instrument in writing under seal must be commenced within 20 years.
(2) (Deleted by amendment).