What was found
PHL - FLT 793 EN ROUTE DCA TO NAS. AFTER TAKEOFF, RECEIVED ECAM WARNINGS: L/G DOORS NOT CLOSED, L/G GEAR NOT UPLOCKED, & L/G SHOCK ABSORBER FAULT AFTER GEAR RETRACTION. AFTER CONSULTATION WITH OPERATIONS AND MAINTENANCE, THE FLIGHT DIVERTED TO PHL AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE SERVICED THE NOSE STRUT WITH AIR AND OIL, AND REPLACED THE NOSE LANDING GEAR PROXIMITY SENSOR TARGET SUPPORT ASSEMBLY. OK FOR SERVICE.