What was found
ON TAKE-OFF ROLL HEADING MODE FAILED ON CAPT SIDE. HEADING MODE REMAINED INOPERATIVE BACK TO SERVICE CENTER RAMP. REMOVED AND REPLACED NR 1DB IAW MM 34-21-05. OPERATIONAL CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON TAKE-OFF ROLL HEADING MODE FAILED ON CAPT SIDE. HEADING MODE REMAINED INOPERATIVE BACK TO SERVICE CENTER RAMP. REMOVED AND REPLACED NR 1DB IAW MM 34-21-05. OPERATIONAL CHECKS GOOD.