As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED STALL FAIL CAUTION AT 500'. C/W QRH. DIVERTED TO DAY. ON GROUND PERFORMED GPWS TEST, GPWS FAIL STATUS MSG POSTED. ***AIRCRAFT REMOVED FROM SERVICE*** PERFORMED GPWS TEST TO CLEAR GPWS FAIL MESSAGE. IAW AWA SUP 20-137. ALSO PERFORMED TEST OF STALL PROTECTION SYSTEM. IAW AMM 27-35-01 OPS TEST GOOD.