As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PART FAILED DURING NTS SYS CHECK. AFTER ENG REPAIR DUE TO BIRD INGESTION, DURING ENGINE TEST, AN NTS SYS CHECK WAS ACCOMPLISHED AND THE NTS SYS DID NOT TRIP. THE NTS VALVE WAS REPLACED WITH A NEW UNIT AND THE NTS SYS WORKED PROPERLY. TTSN=1018.7 HRS.