As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A/F TEST FAILS TEST, #1 ENGINE ABORT, #2 ENGINE FAILED. REMOVED FROM SERVICE. INTERROGATED CDS . FOUND FAULT 72 CH B ON # 2 ENG DISPLAY. REF Q400 FIM TASK 61-20-02-810-836. CLEARED FAULT AND C/W OPS TEST OF AUTOFEATHER & UPTRIM SYSTEM PER AMM 61-20-00-710-810. TEST PASSED THREE TIMES. FAULT DID NOT RETURN. NO FURTHER DEFECTS.