B757-200
Maintenance Airframe; Maintenance Powerplant
Aircraft Equipment Problem Less Severe
General Maintenance Action
Aircraft
While performing a slide installation on [aircraft] over wing; noticed deploy cable loose. Upon further inspection found hoses kinked & collapsed along with deflation valves flapper assemblies damaged. Also found dry rot spots. Part being returned to stores as bad from stock.
B757 Aircraft Technician reported slide components found damaged during installation.