As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSTALLED A NEWLY OVERHAULED COMPLETE HYDRAULIC POWER PACK UNIT AS RECEIVED. AFTER INSTALLING THE UNIT IN THE AIRCRAFT AND PERFORMING A RETRACT TEST THE NEW OVERHAULED GEAR MOTOR WAS JERKY AND ACTING LIKE IT WAS SHORTING OUT. REMOVED MOTOR AND INSTALLED ANOTHER NEW OVERHAULED MOTOR AND SYSTEM WORKED FINE. (K)