As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT WAS DEPARTING. THE GEAR HANDLE WAS SELECTED UP. THE HYD PUMP WAS NOT HEARD TO ACTIVATE AND THE HYD CAWS LIGHT ILLUMINATED 2-3 SECONDS LATER. THE LANDING GEAR LIGHTS STAYED IN THE "3 GREEN" POSITION. THE HYD POWER RELAY PN 974.09.26.112 WAS CONFIRMED TO BE STICKING AND WAS REPLACED. SN OFF: N326 ON: R711. THIS RELAY WAS INSTALLED (NEW) 7 HOURS EARLIER FOR THE SAME PROBLEM REPORTED IN THE REFERENCED SDR'S. NOTE: THIS WAS A PART 91K FLIGHT.