What was found
CAPTAINS HSI & FIRST OFFICERS RMI GYRO FLUCTUATE 45 TO 90 DEG EITHER WAY DURING TURNS. REPLACED NR 2 DIRECTIONAL GYRO SYS, CHECKED GOOD ON GROUND PER M/M 34-21-0.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPTAINS HSI & FIRST OFFICERS RMI GYRO FLUCTUATE 45 TO 90 DEG EITHER WAY DURING TURNS. REPLACED NR 2 DIRECTIONAL GYRO SYS, CHECKED GOOD ON GROUND PER M/M 34-21-0.