Aircraft hard landing indicator

A landing gear assembly, comprising:

• a shock strut;
• a wheel assembly coupled to the shock strut;
• and
• a hard landing indicator assembly coupled to the shock strut, the hard landing indicator assembly including:
• a pressure relief valve;
• a hydraulic tube having a first end and a second end, the first end coupled to the pressure relief valve;
• a gland nut coupled to the second end of the hydraulic tube, the gland nut having an orifice therethrough;
• and
• a plunger having a top portion and a shaft, the plunger disposed in the hydraulic tube with the shaft extending into the orifice of the gland nut;
• wherein a distal portion of the shaft is a hard landing indicator that is configured to extend outward from the hydraulic tube through the orifice in response to a hard landing event.

A hard landing indicator assembly, comprising:

• a pressure relief valve;
• a gland nut;
• a hydraulic tube having a first end and a second end, the first end coupled to the pressure relief valve and the second end coupled to the gland nut;
• a plunger having a top portion and a shaft, the plunger disposed in the hydraulic tube, wherein a portion of the shaft is a hard landing indicator that is configured to extend outward from the hydraulic tube in response to a hard landing event;
• a liquid disposed between the pressure relief valve and the plunger, the liquid having a first pressure applying a first force to the plunger in a first direction;
• and
• a spring disposed between the plunger and the gland nut, the spring applying a second force to the plunger in a second direction opposite the first direction.