A model-assisted probability of detection (MAPOD) validation of Process Compensated Resonance Testing (PCRT) inspection for creep deformation is presented. The PCRT inspection was trained entirely with resonance data from PCRT forward models that predicted the effect of creep deformation on resonance frequencies. The MAPOD validation was conducted with a combination of physical validation specimens and modeled specimens. The modeled specimens included simulations of the effects of uncertainty inherent in the measurement of physical samples. The results validated PCRT forward modeling accuracy for creep deformation, and accurate PCRT classification of acceptable and unacceptable levels of creep.