What was found
AFTER TAKEOFF GEAR WOULD NOT RETRACT. CYCLED ONCE STILL WOULD NOT RETRACT. WHEN GEAR HANDLE WAS UP WE GOT AN AMBER CAS GEAR DISAGREE. PUT GEAR HANDLE DOWN AND CONTINUED SHORT FLIGHT. REVIEWED PREVIOUS STEPS AND PROCEEDED WITH THE FOLLOWING; GAINED ACCESS TO SELECTOR VALVE AND REMOVED AND REPLACED SELECTOR VALVE IAW GL-6000 AMM 32-33-15. PERFORMED OPS AND LEAK CHECKS. OPS AND LEAK CHECKS GOOD. BLED HYDRAULIC SYSTEM 3 AS REQUIRED. SWUNG GEARS SEVERAL TIMES AND ALL GEAR SWINGS SUCCESSFUL. DURING CLOSE UP OF WHEEL BINS, ONE OF THE RECEPTCALES BROKE OFF. REMOVED BROKEN RECPTCALE AND INSTALLED NEW ONE. CLOSED OUT ACCESS TO VALVE AND RETURNED AIRCRAFT TO ORIGNAL CONFIGURATION. AS PER PREVIOUS STEP, PERFORMED OPS CHECKS OF SPC. PERFORMED OPS CHKD & OPS CHKD GOOD. REMOVED MLG DOOR. SELECTOR VALVE NEED OK TO INSTALL NEW CONTROL VALVE. INSTALLED LANDING GEAR DOOR SELECTOR VALVE IAW TO MM 32-31-17. TECH CR RII SR OPS TEST REQUIRED. TECO-PERFORMED OPS TEST & VERIFY RIG/ ADJ IAW MM CA 32-30-00. TECH CR RII SR OPS TEST SAT. PERFORMED OPS TEST OF STALL PROTECTION COMPUTER IAW MM 27-32-00. OPS TESTED SAT.