What was found
WHEN GEAR HANDLE RAISED, RED UNLOCK ILLUMINATED, NOSE WHEEL DOWN AND LOCKED EXTINGUISHED, BOTH MAIN GEAR DOWN & LOCKED REMAINED ILLUMINATED AND AFTER 15 SECONDS GEAR RAISED NORMALLY. JACKED AIRPLANE, CONNECTED HYD GEAR HANDLE WOULD NOT ALLOW GEAR TO RETRACT INSPECTED FOUND LOWER STRUCT CAMBER AT ZERO PSI RESERVICED NOSE STRUT IAW MM 32-20-00 PERFORMED GEAR SWING OPS CHECK GOOD IAW MM 32-20-00.