As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED THAT THE TAWS SYSTEM HAD FAILED. THE MAINTENANCE VENDOR TROUBLESHOT AND FOUND THE EGPWS COMPUTER FAILED TESTING. THE COMPUTER WAS REPLACED WITH A REPAIRED UNIT. OPS CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE