As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2092 - AUTO FEATHER FAILED TO ARM DURING DAILY TEST. MAINTENANCE REPLACED A/F SELECT SWITCH NO HELP. REPLACED NR 1 AND NR 2 TSCU'S BOTH REPLACED IAW P&W 123 MM 72-01-10 PAGE 240-424, PARAGRAPH 7A AND B. ALL CHECK ARE GOOD. PERFORMED THE AUTO FEATHER/POWER UP TRIM TEST 21 TIMES, ALL WORKED IAW TASK CARD 9720018, P/N 30005-0000-49, S/N 3461, TSR 675.04. AIRCRAFT RETURNED TO SERVICE.