As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONNECTOR PLUG ADAPTER ON BACK OF SWITCH DEFORMS UNDER PRESSURE, O-RING DISPLACES, AND HYD FLUID LEAKS BY. LOSS OF HYD FLUID LED TO COMPLETE HYDRAULIC FAILURE. PILOTS FREEFALLED NOSE GEAR DOWN. (4) SIMILAR SWITCHES IN ACFT. MFG IS WORKING ON SB TO REPLACED SWITCHES. RECOMMEND REPLACING SWITCHES WITH STRONGER UNIT. (K)