NTSB investigations: Pratt & Whitney TW-S1-S3-S4, SC

0 cases on aircraft whose registry engine model is Pratt & Whitney TW-S1-S3-S4, where the first occurrence was “Loss of control - on ground/water”. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.