What was found
LEFT ENGINE INLET DEICE FAILS IN FLIGHT. RETURNED TO FIELD. REPLACED BOTH PRESSURE REGULATORS FOR DEICE SYSTEM, OPS CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT ENGINE INLET DEICE FAILS IN FLIGHT. RETURNED TO FIELD. REPLACED BOTH PRESSURE REGULATORS FOR DEICE SYSTEM, OPS CHECKS GOOD.