At approximately 10:09 PDT, a Cessna 182P suffered a flight control interference while on final approach to a private airstrip. The pilot diverted to Tacoma and landed without incident. No one was injured. The operator reported the left flap restricted movement of the aileron while the aircraft was on final approach to Port Orchard. An inspector found the inboard left side flap track was cracked and broken. The flap deformed and contacted the aileron, restricting its movement.